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Browser-native video tips, FFmpeg internals, and Clapr product updates.
Is Discord's Upload Limit 10MB or 20MB? Both Are Official
Discord's free upload limit is 20MB as of August 2026, but two of Discord's own help pages still print 10MB. Here is all three, word for word, with dates.
Convert MOV to MP4 for Instagram: What Reels Actually Needs
Meta's Graph API spec lists MOV and MP4 alike. Here are the two container conditions that really decide whether a Reel uploads, and how to meet them.
OBS Pause Recording Greyed Out? One Setting Explains It
OBS's own docs say recordings cannot be paused when Recording Quality is Same as stream. Here is the setting to change and what changing it costs you.
Slack Files Disappeared After 90 Days: Hidden or Deleted?
Slack files disappeared after 90 days? On a free workspace they are usually hidden, not deleted — unless one retention setting is on. How to tell which.
Telegram Video Sent as File and Not Playing: The Fix
Telegram showing your clip as a file row, or looping it silently like a GIF? Here is what Telegram's own docs say about why, and how to fix it.
VLC Subtitles Not Showing? It's a 0–4 Dial, Not a Switch
VLC subtitle autodetection is a five-level fuzziness dial, not on/off. What each level means, how to point VLC at another folder, and the track-ID trap.
Why Your YouTube Video Color Looks Different After Upload
YouTube assumes BT.709 when your export leaves its color tags unspecified. Here is what that assumption changes, and how to stop the shift before uploading.
Best MP3 Export Settings for a Podcast in Audacity
Audacity's manual recommends CBR over VBR for podcasts and lists exact bit rates. Here are those settings, plus the export dialog steps that go with them.
Audacity 'Unsuitable Drive' Error: The FAT32 4GB Fix
Audacity blocks project saves on FAT and FAT32 drives on purpose. Here is what the 4GB limit really means and the exFAT fix the official manual gives.
How to Import SRT Subtitles Into CapCut on Mobile
CapCut Mobile cannot import .srt or .txt files as of 2026. Here is the official route: import on Desktop or Web, then view and edit the captions on your phone.
CapCut Watermark Still Showing After Deleting the Outro
Deleted the outro but the CapCut watermark is still there? CapCut's help center documents three separate triggers, not one — here is how to find yours.
How to Export a GIF from DaVinci Resolve
GIF is in the Deliver page Format menu if your system lists it. The click path, the official 256-colour ceiling, and what "constant duration" limits.
DaVinci Resolve Quick Export vs Deliver Page: What Differs
Five official Blackmagic lists give five different sets of platforms Quick Export can upload to. All five side by side, plus what the Deliver page documents.
Discord Attachment Link Expired: What Actually Expires
Discord attachment links are signed URLs with a preset expiry — Discord never publishes the duration. What ex, is and hm mean, and which links never expire.
FFmpeg yuv420p for X (Twitter) Video: The Pixel Format Rule
X's media docs allow exactly one pixel format. Here is the FFmpeg command that converts 4:2:2 or 4:4:4 footage, and why a rejected upload explains nothing.
FFmpeg Faststart for YouTube: Moov Atom at the Front
YouTube's recommended settings ask for the moov atom at the front and no edit lists. Here is the FFmpeg command, and an honest read of what it fixes.
Gmail 50MB Attachment Limit in Workspace: The Web-Only Catch
Gmail's 50MB attachment limit is Enterprise Plus only, and Google's own footnote says it works only on the web version of Gmail. Here is the full table.
Google Drive Won't Play Your HEVC/H.265 Video? Here's Why
Google's own Drive video list names h264, MPEG4, VP8, MJPEG and MPEG2 — HEVC/H.265 never appears on it. What that means, and how to fix an unplayable clip.
HandBrake NVENC or QSV Greyed Out? Here's the Real Cause
HandBrake disables hardware presets for exactly two documented reasons. Here is what NVENC and QSV being greyed out means, and what to encode with instead.
How to Export MP4 from iMovie (and Why iPhone Can't)
iMovie exports MP4 natively — Apple documents the exact steps. Here is the Mac workflow, the iPhone restriction nobody mentions, and the one-second shortcut Apple endorses for H.264 files.
Instagram Video Too Long to Post? Find the Real Limit
Instagram documents five different video length ceilings across app, API and ads — from 60 seconds to 60 minutes. Here is which one is stopping you.
iPhone 128GB ProRes Only 1080p? Why 4K Isn't Offered
On a 128 GB iPhone Pro, ProRes to internal storage is capped at 1080p. Here is Apple's exact wording, the capacity table behind it, and what to do instead.
iPhone Slow Motion: 120 vs 240 fps, and How to Switch
Apple sets slo-mo to 1080 HD at 240 fps on the back camera and 120 fps on the front. Here is where to change it, and what each rate costs you.
Loom SRT to VTT: Web-Ready Captions from a Loom Video
Loom's caption download is SRT. Web players want WebVTT. Here is how to get the file out of Loom, convert it, and serve it the way the spec requires.
Loom Recording Blurry? Why Quality Drops and How to Fix It
Loom recording blurry? Loom's own advice is to set your monitor to 1920x1080. Here is what caps resolution on each recorder, plan and player.
OBS Lossless Recording File Size: About 7 GB Per Minute
OBS puts a real number on its Lossless preset — around 7 GB per minute — plus a CPU-encoder clause nobody quotes. Here is what both actually mean.
Premiere Pro: Create Proxies Greyed Out? The Four Rules
Create Proxies greyed out in Premiere Pro? Adobe's page lists exactly four conditions a clip has to meet. Here they are verbatim, and how to check each one.
Premiere Pro Export GIF: the Three Transparency Options
Animated GIF is in Premiere's Match Source list, and the Transparency setting has exactly three values. Here is the export path and what each one does.
Shotcut's Default Export Preset: What Quality Is It?
Shotcut's User Guide calls the Default export preset high quality; the FAQ calls it moderate quality. Here is what the official pages actually say.
Shotcut Export Subtitles as VTT? It Exports SRT Only
Shotcut imports SRT, VTT, ASS and SSA subtitles but exports only SRT. What the official guide actually says, and how to get a WebVTT file anyway.
Slack Free Plan Storage Limit: What Is Actually Documented
Slack's free plan storage limit is documented as a 90-day visibility window and deletion at one year, not a quota. Where the 5GB figure comes from.
Teams Recording Is View Only With No Download: Which Policy?
A Teams recording that plays but won't download comes from one of two unrelated admin policies. How to tell which one you hit, and what each actually covers.
Teams Chat File Size Limit: 100 MB or 250 GB?
Microsoft's own limits page lists 100 MB in the Chat table and 250 GB in the Storage table. Here is where each number sits and which one to plan around.
Telegram Supported Video Formats: What Actually Plays
Telegram accepts files of any type, but only some play as video. What the official docs say about MPEG4 and H.264/H.265/AV1 — and the grey-file-icon fix.
How to Extract Audio in VLC Without Re-Encoding
VideoLAN's own how-to says extracting audio with no re-encoding costs no quality. Here is the documented command, what mux=raw does, and where it fails.
WordPress Maximum Execution Time Exceeded on Upload: The Fix
WordPress upload dying on maximum execution time exceeded? Here is what PHP really times out on, and why max_input_time governs upload duration.
Convert Video to GIF in WordPress: Gif Block vs Real GIF
WordPress's Video block transforms into a Gif variation, but the docs never say it makes a .gif file. Here is the route that ends in a real GIF.
X: "There Was a Problem Uploading Your Subtitle (.srt) File"
X publishes four checks for a rejected SRT — chronology, spaces, timestamp, digits — plus a correct and an incorrect example. None of them mention encoding.
Burn a Zoom Transcript Into a Video With FFmpeg
Zoom embeds the transcript in your recording but hides it by default. Here is the ffmpeg command that renders that VTT permanently into the picture.
Zoom Recording Black Bars on the Sides? Here's Why
Zoom's docs explain the black bars on a recorded screen share: the shared screen outranks your camera. Here is the mechanism and the one number Zoom gives.
Audacity FFmpeg Error 0x15002: Can't Open Audio Codec
Audacity's 0x15002 export error is a channel-count refusal, not a broken FFmpeg install. Here is what triggers it and the condition one official page omits.
Audacity OGG Imports at 16-Bit: Why, and the One Fix
Audacity always imports OGG at 16-bit, whatever your Default Sample Format says. Here is the manual's reason, and the one documented route to 32-bit.
CapCut Export Settings: What the Official Docs Say
A source-checked guide to CapCut export settings — which resolution, frame rate and bit rate options the help center documents on web, desktop and mobile.
CapCut SRT to VTT: How to Get WebVTT Captions Out
CapCut's caption export lists SRT and TXT, not VTT. The exact export steps, what CapCut refuses to export, and how to convert SRT to VTT in your browser.
How to Export MKV from DaVinci Resolve
Set Format to MKV on the Deliver page, then pick a codec your platform can actually encode. What Blackmagic's manual and codec tables each say about mkv.
DaVinci Resolve Export Settings for Instagram Reels
Resolve has no Instagram preset. Here are the TikTok preset's documented parameters, plus the one default Blackmagic's own manual tells you to change.
Discord MOV File Too Large? How to Get It Under the Cap
Discord lists MOV as an accepted file type. Here is which upload ceiling applies to you, and how to shrink the file before Discord measures it.
FFmpeg Settings to Encode Video for X (Twitter)
X's media docs list six encoding rules stated with the word "must". Here is each one quoted verbatim and mapped to the FFmpeg flag that satisfies it.
Gmail Can't Send Attachments? Check Storage, Not File Size
Gmail blocks attachments when your Google storage is full, not only when a file is too big. What Google documents, and how to get sending again.
Google Drive WebM Not Playing: What Google's List Says
Your WebM uploads to Drive but won't play. Google's official video list names only VP8 and Vorbis inside WebM — here's what that means, plus the fix.
Why HandBrake Changed Your Resolution and Frame Rate
HandBrake preset names like 720p30 are maximums, not targets. Here is why a 1080p60 source came out 720p30, and which presets leave it alone.
Instagram Reels Blurry After Upload? Start With This Toggle
Instagram documents a Reels upload-quality setting you have to switch on yourself, and publishes nothing about what it re-encodes. Here is the official fix.
iPhone HDR Video Looks Washed Out on Windows: The Fix
iPhone records in Dolby Vision HDR, and Apple documents an exact version line for who gets HDR and who gets SDR. Here is that line and what to do.
iPhone ProRes External SSD Requirements: Apple's Exact Specs
Apple's exact requirements for recording ProRes to an external SSD: 220 and 440 MB/s write speeds, exFAT, USB 3, and the reformat rule.
Can You Upload a Subtitle File to Loom? No — Here's Why
Loom's docs say users can't upload external subtitle files. Here's what that blocks, what you can still export, and how to get captions onto the video anyway.
Loom Downloaded Video Looks Stretched? Here's the Reason
Your Loom plays fine on the share page but the downloaded MP4 looks stretched. Loom's own download page explains the mechanism — and what to change.
OBS Recording Format for Multiple Audio Tracks
OBS suggests MKV for multi-track audio and names FLV as single-track only. Here is the official container and codec table, and the numbers OBS never publishes.
Premiere Pro Export Using Proxies: Why It Doesn't by Default
Premiere exports at full resolution by default, even with proxies enabled. Here is the checkbox that changes that, and when you should leave it alone.
How to Export WAV Audio From Premiere Pro
Export a WAV out of Premiere using Adobe's own export settings, and why raising the sample rate on export does not improve quality.
Shotcut Subtitles Not Showing in Exported Video
Shotcut embeds subtitles only when the output format supports it, and one checkbox can switch that off. What the official docs actually say.
Shotcut Best Export Preset: Official Picks by Scenario
Shotcut's FAQ names an export preset for six scenarios, from YouTube to SDI capture. Here is that table, and where the official guidance stops.
How to Send a Long Video on Slack: Clip vs. File
Slack clips stop at five minutes; file uploads stop at 1GB. Which path to use for a long video, how to get under the cap, and why mobile can't download it.
Teams Captions Not Showing After Moving a Recording
Microsoft says a moved or copied Teams recording can lose its captions. What the official pages actually say, and how to keep a transcript you control.
Can't Download a Teams Meeting Recording? Here's Why
Microsoft's own help pages give four different answers about who can download a Teams meeting recording. Here is what each says and what to do.
How to Send a Video on Telegram Without Losing Quality
Telegram's send-as-file path is a documented protocol flag, not folklore. What the official docs say about video quality — and what they never say.
WordPress: This File Cannot Be Processed by the Web Server
WordPress says "this file cannot be processed by the web server"? Automattic's own docs say it is the file type, not the size. Here is the real fix.
WordPress Video Block Preload Setting: Which One to Pick
WordPress documents three preload settings for the Video block and four for the Audio block. Here is what each one does, and which to choose.
Best Bitrate for X (Twitter) Video: 4 Official Numbers
X publishes four different video bitrate numbers — 5,000 kbps, 2048K, 25 Mbps and 5-8 mbps. Here is where each one comes from and which applies to your upload.
YouTube Recommended Upload Encoding Settings, Explained
YouTube's recommended upload encoding settings in full — the SDR and HDR bitrate tables, plus the official lines showing these are suggestions, not rules.
Zoom Recording Low Resolution? Why It Records at 360p
Zoom's own resolution table makes 360p the default for recorded video. Here is what has to be true to get 720p or 1080p, and what caps you lower.
Zoom Transcript Language Not English: What Zoom's Docs Say
One Zoom help page says audio transcription is English-only. Another lists 19 languages and a way to regenerate the transcript. Here is which to follow.
Audacity Surround Sound Export: Multichannel Limits
Audacity exports up to 32 channels to WAV, AIFF or OGG but only 8 to FLAC — and the manual's own M4A row contradicts its own footnote. Here is what it says.
Audacity AAC Bitrate Not Working? It's a Documented Bug
Audacity's manual calls this a bug: AAC bit rate settings are not always honored. Here is which settings break, and the official way around it.
CapCut Bitrate Setting Explained: What the Docs Say
Where CapCut's bitrate setting lives, what Custom, Higher and Lower actually mean, and why no specific Mbps number you find online comes from CapCut.
CapCut SRT Export Not Working? Read This One Line First
CapCut only exports captions it recognized automatically, which is why your SRT comes out empty. Plus the encoding and path rules its help center spells out.
DaVinci Resolve Bypass Re-encode When Possible, Explained
What Resolve's Bypass re-encode checkbox copies, what silently disables it, and why H.264 and H.265 clips never qualify in the official codec table.
How to Compress a Video for Discord in DaVinci Resolve
DaVinci Resolve ships no chat-app render preset. Here is the Custom setup — MP4, H.264, Restrict to X Kb/s — that gets a timeline under a Discord cap.
Discord Mobile Video Quality: What Data Saver Changes
Discord documents two mobile app settings that lower video upload quality — Data Saver, and Data Saving Mode over cellular. What they say and what they don't.
Discord Video Not Playing in Chat? Here's What to Check
Discord video not playing? What Discord's own docs say about MP4 codecs, extension checks and expiring attachment links, and where they stop.
FFmpeg: Extract OBS's Second Audio Track With -map 0:a:1
OBS's Advanced Output Mode records up to 6 audio tracks, but a player plays one at a time. Here is the ffmpeg -map command that pulls track 2 out.
Can't Email a MOV File in Gmail? Here's What's Blocking It
Gmail's blocked-file list doesn't name a single video format. So a MOV that won't send is a size or storage problem — here's how to tell which one.
Google Drive Supported Video Formats: The Two Official Lists
Google Drive publishes two supported video format lists and they disagree. What each one says, codecs included, and what to do if yours is missing.
HandBrake: No Valid Source Found — What to Check First
HandBrake says no valid source found? The official docs never explain that message, but they do state exactly which sources HandBrake will not open.
HandBrake File Bigger Than the Original? Here's Why
HandBrake's default mode sets the bitrate for you, so the output size is a result, not a target. Here is the official reason a file grows, and how to fix it.
Instagram API Video Upload Error: Reading status_code
A container ID is not a successful upload. What each Instagram API status_code value officially means, how often to poll, and which 24-hour gate you hit.
Instagram Reels Upload Failed? Here's What to Check First
Reels upload failed with no explanation? Here is what Instagram actually documents — container rules, the spec ranges it publishes, and the API status codes.
iPhone 4K PAL: What That Camera Setting Actually Means
Apple defines PAL in a single line of the iPhone User Guide. Here is that definition, where the PAL options appear, and what Apple leaves unsaid.
How Big Are iPhone ProRes Files? What Apple Actually Says
Apple gives one size figure for ProRes: files are up to 30 times larger than HEVC. Here is what that ceiling really means, plus the 10 percent rule.
How to Download SRT Captions From Loom (And Who Can)
Loom exports captions as an SRT file, but only certain plans and roles can download it. Here is the exact click path, who qualifies, and what to do next.
Loom Video Too Large to Download? The 20GB Ceiling
Loom will not download videos over 20GB — about 3 hours in 4K by its own maths. Here is what that cap covers and why it is not the 4GB upload limit.
How Many Audio Tracks Can OBS Record? Six, With a Source
OBS records up to 6 audio tracks — a figure with an official source, not forum folklore. Here is where the ceiling lives and which container keeps it.
"Error Compiling Movie" in Premiere Pro: How to Fix It
The fix most articles give for Premiere Pro's "Error compiling movie" was removed by Adobe in 25.2. Here is what Adobe actually documents, in order.
How to Export Audio Only as MP3 in Premiere Pro
Export a sequence as an mp3 from Premiere Pro: the format route Adobe documents, the audio settings that matter, and the switch behind silent exports.
Premiere Pro: Mercury Playback Engine Software Only Missing
Adobe removed software rendering from Project Settings in Premiere 25.2 and later. Which platforms it affects, and what the greyed-out Renderer menu means.
How to Burn Subtitles Into Video in Shotcut
Shotcut's Subtitle Burn In filter only works on the Timeline Output. Here is the exact order of steps, the Typewriter defaults, and the export gotcha.
Shotcut Export No Sound: What Officially Causes It
Shotcut's own guide blames silent audio on invalid container, codec and hardware-encoder combinations. Here is how to find and undo the bad combo.
Slack Screen Recording Too Large to Upload? Three Walls
A long screen recording can fail three ways in Slack - the 1GB file cap, the five-minute clip limit, and the Slack Connect list that blocks archives.
Slack Clip Length Limit: Five Minutes, and What Happens After
Slack caps clips at five minutes on every plan. On a free workspace, files hide once the workspace hits its visibility limit, and go after one year.
What Format Is a Teams Recording? (.mp4, Officially)
Teams meeting recordings are .mp4 files. Here is the one official page that says so, where the file lands, and what the docs leave unstated.
Teams Transcript Not Generating? What Microsoft Documents
Teams transcripts fail for reasons recordings don't. Microsoft's own pages name them: transcription switched off, Copilot off, size caps, and language.
Telegram Upload Speed Slow? What Actually Throttles It
Telegram only throttles free uploads after tens of gigabytes, and Premium is not a guaranteed fix. Here is what really makes a Telegram upload crawl.
Telegram Video Message vs Video File: Not the Same Thing
A Telegram video message is a separate media type, not a smaller video. What the official API says about round video notes, video files and send-as-file.
VLC Compress Video: Get a Clip Small Enough to Email
VLC can compress video, but only four documented settings actually lower the bitrate. Here is what VideoLAN's own docs say each one does, and how to test it.
VLC Supported Formats: What It Plays vs What It Saves
VLC's input format list runs to dozens of codecs. Its documented output muxer list has eight entries. Here is the gap, why it exists, and how to check it.
WordPress HTTP Error on Media Upload: What the Docs Say
WordPress's docs never list an HTTP error for media uploads. Here are the failures they do document — memory, timeouts, size caps — and what to try first.
VideoPress Automatic Subtitles: How to Use and Turn Off
VideoPress generates a subtitle track automatically for every video you upload. Here is when it appears, what editing does to it, and how to switch it off.
X Video Frame Rate Limit: Is It 40 fps or 60 fps?
X's help center caps web video uploads at 40 fps. X's developer docs say 60 FPS. Both are official. Here is every published number and the scope it applies to.
X (Twitter) Video Has No Sound After Posting: What to Check
X accepts AAC Low Complexity audio in mono or stereo, and names what it rejects. Here is how to check your track and re-encode it before you repost.
YouTube Shorts Black Bars: How to Fix Them for Real
Black bars on a YouTube Short are baked into your file — the padding YouTube adds is white or dark gray. How to tell them apart and fix the right one.
YouTube Shorts Video Specs: Every Number, With Its Source
YouTube publishes five specs for Shorts, and a file size limit is not one of them. Here is each number, the page it comes from, and what is invented.
Zoom M3U File: How to Open It (and Why You May Not Need To)
Zoom's playback.m3u is a playlist, not a video. What it points to, why it exists, how to open it on Windows, and what to send people instead.
How to Convert a Zoom Recording to MP4
Zoom converts computer recordings to MP4 when the meeting ends. How to convert one by hand, where the files are saved, and what Error Code 614 means.
Zoom Transcript VTT to SRT: How to Get an SRT File
Zoom saves cloud recording transcripts as VTT and documents no SRT export. How to download the VTT, convert it to SRT in your browser, and what gets lost.
Audacity M4A Bitrate Options: The Full Range, Officially
Audacity's M4A (AAC) export runs from 98 to 320 kbps, but the numbers split by channel count — and one end of the range is missing from the manual.
Audacity Exported MP3 Won't Play? Check Your Project Rate
Audacity's own FAQ says a failed MP3 export can be a few bytes long. Here is the sample-rate cause, the 44100 Hz fix, and what else breaks playback.
How to Export a GIF from CapCut — The Documented Route
CapCut's help center never documents GIF export. Here is what the official pages actually say, and a browser route from a CapCut export to a finished GIF.
CapCut Preview Blurry But Export Fine? Here's Why
CapCut's help center says the low-res preview does not reflect your source quality. Here is what the preview setting does, what Proxy changes, when to worry.
DaVinci Resolve Export File Too Big: What You Can Control
DaVinci Resolve gives you no target file size — only a maximum data rate and a constant bitrate switch. Here is what each control officially does.
DaVinci Resolve: MOV to MP4 Without Re-Encoding — What the Manual Allows
Resolve has a Bypass re-encode checkbox. Here is the official list of what switches it off, and which codecs are allowed to pass through in the first place.
Discord GIF Too Large to Upload? Three Different Walls
A Discord GIF can be too large in three separate ways - the upload cap, the 20MB display rule, and files that are not really GIFs. Here is how to tell which.
Discord Images Sending as Files Instead of Previews
Discord documents two reasons an image posts as a download instead of an inline preview - a desktop/browser upload setting, and a 20MB display rule.
FFmpeg Compress Video for Telegram: The Command, Explained
Telegram allows 2 GB per file, so size is rarely the problem. Here is the FFmpeg command, and why it must output MP4, H.264, and keep an audio track.
FFmpeg GIF Palette: The High-Quality GIF Command, Explained
The two-step palettegen/paletteuse command with every flag explained from FFmpeg's own docs — including the lanczos flag that is now marked deprecated.
Gmail Drive Attachment: Recipient Can't Open It — Why
Your Gmail Drive attachment won't open for the recipient. Google names three exact reasons — and publishes two lines that seem to contradict. Here are both.
Google Drive Video Still Processing? Here's What to Do
Drive says your video is still processing, try again later. What Google's docs actually say, why it plays for you but not for viewers, and how to fix it.
HandBrake RF vs FFmpeg CRF: The Same Number, Explained
HandBrake's docs call the RF slider a Constant Rate Factor, sometimes abbreviated CRF. What that means when you move a value to ffmpeg -crf.
HandBrake WebM Output: The Limits, and Why It's So Slow
HandBrake's WebM output takes only VP8, VP9 or AV1 video and Vorbis or Opus audio, and no soft subtitles. Here is what that costs you on every encode.
Instagram Reels Video Specs: What Instagram Really Says
Instagram publishes three sets of Reels specs — app, API and ads — and they disagree. Here is each with its source, and why 1080x1920 is in none of them.
Instagram Story Video Length Limit: 60 Seconds, With a Catch
Instagram's documented story video limit is 60 seconds and 100MB — in Meta's API spec. Here is the full spec, its scope, and how it differs from Reels.
Instagram Video Aspect Ratio: Every Official Range
Instagram publishes six aspect ratio ranges across app, API and ads. Here is each with its source, and which ones apply to video at all.
iPhone 4K 60fps Settings: What Your Model Can Record
Apple lists HD, 4K, HD (PAL) and 4K (PAL) plus 24-120 fps, but the options depend on your model. What iPhone 17 and 17 Pro actually record.
iPhone Share Options: Current vs Most Compatible
Apple documents a share sheet option called Current that prevents a file format conversion. Here is where it lives and what each choice really does.
Loom Downloaded Video Has No Captions? Here's the Fix
Loom's docs say closed captions are not included in the downloaded MP4. Here is how to get the SRT out and burn the subtitles in yourself.
Upload MOV to Loom: How to Do It and Why It Fails
MOV is on Loom's official container list, yet MOV uploads still get rejected. The plan requirement, the three thresholds, and the export Loom recommends.
OBS Encoding Overloaded: The Fix OBS Puts First
OBS's troubleshooting guide puts one fix first for encoding overloaded — run OBS as administrator. Here is the mechanism, and what to try after it.
How to Remux OBS Recordings to MP4 (Both Official Ways)
OBS converts recordings to MP4 in two places — File → Remux Recordings and an auto-remux switch. Here is where both live, and what the docs never say.
Premiere Pro Export Stuck or Freezing? Adobe's Six Steps
Adobe's official checklist for a Premiere export that hangs — and why step three points at a setting Adobe deleted from the app in version 25.2.
Premiere Pro Export: MOV or MP4? How to Choose
In Premiere Pro, MOV vs MP4 is the Format menu, not a checkbox. What Adobe documents about each, and the one case where MOV exports without re-encoding.
Shotcut 10-Bit Export: Why the Hardware Encoder Drops Out
Shotcut's release notes say no H.264 hardware encoder supports 10-bit. What that means for your export speed, and which encoders do have 10-bit fixes.
How to Export FLAC Lossless Audio From Shotcut
Export lossless FLAC audio from Shotcut using the built-in audio preset, plus two release-note changes that explain odd containers and dead scrub bars.
Slack Image Preview Not Showing? Two Pixel Rules, Not One
Slack shows an image inline only if it passes two pixel conditions at once. Here is the official rule, why panoramas fail it, and what else kills a preview.
How to Share an Audio File on Slack Longer Than 5 Minutes
Slack clips stop at five minutes. Upload the same recording as an ordinary file and the documented rule is 1GB, with no duration cap stated. Here is how.
Teams Video Transcript Size Limit: Is It 1GB or 4GB?
Microsoft's own page states two sizes for automatic video transcripts, 1GB and 4GB. Here is which one to plan around and why long meetings land between them.
Teams Recording Failed to Upload to OneDrive: What to Do
Teams recording failed to upload to OneDrive? Microsoft says no automatic retry happens, and its pages give two different deadlines. Here is the fix.
Telegram Local Bot API Server: File Size Limits, Exactly
A local Telegram Bot API server moves file size limits in two directions at once — downloads become uncapped, uploads cap at 2000 MB. The documented list.
VLC "Keep Original Track": What It Means and When to Use It
VLC's "keep the original track" means no transcoding at all. Here is VideoLAN's own definition, the one condition it needs, and when a container refuses.
VLC sout Transcode on the Command Line: Every Flag
The full VLC --sout transcode syntax, flag by flag, from VideoLAN's own docs — including the 96 audio bitrate default and the 48000 Hz sample rate ceiling.
WordPress SRT or VTT Subtitles: Which One to Upload
WordPress publishes four subtitle format lists and they disagree. Work out which one applies to your upload path, then convert your file to match.
WordPress WebM Upload Not Supported: Two Official Answers
WordPress core lists webm in its default MIME map, while WordPress.com names .webm as needing a plugin. Find which rule applies to your site, and the fix.
X (Twitter) Video Resolution and Aspect Ratio Limits
X publishes two different sets of video resolution and aspect ratio limits — one for web uploads, one for the API. Here is each set and what it covers.
Can You Upload WebM to X (Twitter)? What the Docs Say
X's API lists video/webm, Media Studio accepts only .MP4 and .MOV, and the help center lists no formats at all. Here is what each page actually covers.
Why Is My Video Not Showing as a Short? YouTube's Real Rule
YouTube classifies Shorts by square or vertical aspect ratio and up to three minutes in length. Not 9:16. Here is the exact wording and the cutoff dates.
Combine Zoom Recording Parts Into One File With FFmpeg
Zoom split your meeting into several MP4s because the recording was stopped and restarted. Here is the FFmpeg command that joins the parts back into one file.
Zoom Separate Audio File Per Participant: 200 or 80?
Zoom's own docs give two caps for per-participant audio recording — 200 speakers on the cloud page, 80 on the desktop page. Here is what each one covers.
How to Export Apple Lossless (ALAC) from Audacity
Audacity's manual gives a verbatim command for Apple Lossless export, plus one trap: name the file .m4a, not .alac. Here is the command, explained.
Audacity Default MP3 Bitrate: 128 or 170-210 kbps?
Audacity's manual gives two different default MP3 bitrates on two pages. Here is which one your export really uses, and where 128 kbps comes from.
Audacity Crashes When Exporting MP3? Start With Project Rate
Audacity's FAQ blames one thing when MP3 export crashes, hangs or crawls: resampling during export. Here is the official fix, plus what else stalls it.
CapCut Cloud Storage Limit: 0GB Free, 100 GB on Pro
New CapCut cloud spaces get 0GB free, which is why the app shows 1KB. The official numbers for Pro, Teams, expansion packs and the 3,000 GB ceiling.
CapCut Timeline Resolution Stuck at 1080p? What the Help Center Says
For the mobile app, CapCut's help center says the timeline resolution matches your first imported clip and won't upscale later. Here is what that covers.
CapCut WebM Support: What CapCut's Own Pages Say
CapCut's help center format table leaves WebM out. CapCut's own converter page lists it. Both URLs, what each one covers, and what to do before importing.
DaVinci Resolve Export Looks Washed Out? Fix Data Levels
Your DaVinci Resolve export looks grey or faded next to the timeline. Here is what the official manual says about Data Levels, and which dropdown to change.
DaVinci Resolve Can't Export AIFF: the FFmpeg Way Around It
Resolve's own codec list marks AIFF as encode-unavailable on every platform. Here is what it can write, and the FFmpeg command that covers the rest.
DaVinci Resolve MP4 vs QuickTime Export: What Differs
DaVinci Resolve's MP4 and QuickTime exports are not interchangeable. What the manual says about each, which presets pick which, and what MP4 costs you.
Discord Audio File Size Limit: What Actually Applies
Discord publishes no separate cap for audio. MP3, WAV, FLAC and the rest go through the same per-file attachment limit — here is how it is measured and what to do.
Discord Nitro File Size Limit: 500MB, and It Doesn't Stack
Nitro lifts per-file uploads to 500MB, Nitro Basic to 50MB. Here is how that meets a server's Boost tier — the larger of the two wins, never the sum.
FFmpeg and Slack: What the Official Docs Say About Video Size
Slack documents one per-file ceiling — 1GB — and never promises to shrink your upload. What its docs actually say, and where FFmpeg's own docs stop.
Gmail Turns Your Attachment Into a Google Drive Link
When a video goes over Gmail's limit, Gmail swaps it for a Drive link. Here is what that changes about who can open it, and how to keep it a real attachment.
Google Drive Max Video Playback Resolution: 1920 x 1080
Drive plays video at a maximum of 1920 x 1080 but accepts uploads at any resolution. What that means for 4K files, and what Google's docs never say.
Google Drive Video Subtitles Not Showing: What to Do
Drive's player has a Subtitles/CC control, but Google's official file type lists name no standalone subtitle format. Here is what that gap means and the fix.
HandBrake Saved as M4V Instead of MP4? Here's Why
HandBrake switches the extension to .m4v when one of exactly three settings is on. Here is which three, what the file really is, and how to get .mp4 back.
HandBrake RF Value Explained: What to Set, by Encoder
What HandBrake's RF value really controls, the official recommended ranges for x264, x265 and SVT-AV1, and the one encoder where the scale runs backwards.
Instagram Reels No Sound After Upload: Why It Goes Silent
Your Reel uploaded but plays silent. Instagram publishes two contradictory audio specs for Reels — here is the one setup that satisfies both of them.
Instagram Reels Resolution: What Instagram Actually Says
Instagram's help centre publishes one resolution number for reels — a 720-pixel minimum. Here is where 1080x1920 really comes from and what to export.
Does AirDrop Compress Video Quality? What Apple Documents
Apple documents one AirDrop downgrade chain (ProRes, then HEVC, then H.264) and a share-sheet switch that prevents conversion. Here is what Apple states.
iCloud Link Option Missing in iOS 27? What Apple Documents
Apple's iOS 27 page for sending long videos still names iCloud in its intro, but only documents AirDrop and Mail Drop. Both versions, quoted verbatim.
Optimize iPhone Storage: Why Video Quality Drops
Optimize Storage keeps space-saving versions of your videos on the phone while iCloud holds the originals. Here is what that changes when you share.
How to Download a Loom Video as MP4
Loom downloads always arrive as .MP4. Here is the official route, who is allowed to download, and which Loom features do not survive the export.
FFmpeg Remux to MP4 for Loom Upload (No Re-encode)
Loom recommends H.264/AAC MP4. Here is the FFmpeg remux command that swaps the container without re-encoding, and when a remux is not enough.
Loom Supported Video Formats: The Official Upload List
Loom's own table lists MV, AVI, WEBM, MP4, MOV up to 4GB. Here is that list verbatim, the 4GB or 12-hour ceiling, and what to do with a rejected file.
OBS Application Audio Capture Not Working? It's Still BETA
OBS labels Application Audio Capture as BETA and says some apps are incompatible with it. Here is what that means and how to find your missing audio.
OBS Hybrid MP4 Explained: What It Fixes and What It Doesn't
Hybrid MP4 arrived in OBS 30.2 and writes fragmented, then soft-remuxes. Here is what that buys you, and the one thing a crash still costs.
OBS Recording Has No Audio? It Is Usually There, on a Track Your Player Ignores
The most common cause of a silent OBS recording is not a broken setting — the audio was captured onto a track standard players never read. OBS documents this directly. Here is how to tell which case you are in before you re-record.
Premiere Pro Hardware Encoding Greyed Out: What Adobe Says
Premiere switches the Performance menu to software when your export settings aren't supported. Here is what Adobe's pages say, including where they disagree.
Why Adobe Media Encoder's Queue Is Slow With Multiple Files
Media Encoder encodes sources in sequence and outputs in parallel. Here is what that means for a slow queue, plus watch folders and per-job speed settings.
Premiere Pro MKV Not Supported: Why It Won't Import
Adobe's supported-import table does not list MKV. Here is what Adobe actually documents, why converting first is Adobe's own instruction, and how to do it.
How to Export Audio Only as MP3 in Shotcut
Shotcut's own FAQ names MP3 as an audio-extraction preset. Here is the export route step by step, plus the panel default that changed in 2025.
Shotcut Export to GIF: What the Official Docs Cover
Shotcut's only official GIF export source is two release notes. What they say, what the guide leaves out, and a browser route to a finished GIF.
Shotcut Encoders: h264_nvenc vs h264_qsv vs h264_vaapi
What Shotcut's hardware encoder names mean, which official page documents each backend, and why half of them never show up in your Configure dialog.
Slack Video File Size Limit: 1GB, and What It Isn't
Slack caps file uploads at 1GB and publishes no video-specific limit. How that differs from the five-minute clip rule, and what Slack never documents.
How to Burn a Teams Transcript Into a Video File
Teams captions never reach the file you download. Here is the route: pull the .vtt transcript, then render it into the picture yourself.
Teams Recording Missing Shared Content: The Official List
Whiteboards, multi-screen share and some attendee video are absent from Teams recordings by design. Microsoft publishes two lists — and they differ.
Recover an Expired Teams Meeting Recording: 90 or 93 Days?
Microsoft publishes two different recycle bin windows for expired Teams recordings. Here is what each official page says, and how to get the file back.
Telegram Bot File Size Limit: 50 MB Up, 20 MB Down
A Telegram bot can send a 50 MB file but only download a 20 MB one, and file_id has no limit at all. Here is the full matrix, quoted from the Bot API docs.
Telegram Story Video Requirements: 720x1280, H.265, 30 MB
Telegram's story video spec — 720x1280, H.265, MPEG4, key frame every second, 30 MB, 0-60 seconds — applies to the Bot API. Full spec, with scope.
VLC AVI Output Corrupt? VideoLAN Documented This Itself
VLC's own documentation admits the AVI muxer produces corrupt files. Here is the exact line, the codecs AVI accepts, and what to write to instead.
VLC Convert Video to GIF: What the Official Docs Say
VLC's official container, muxer and encoder lists contain no GIF entry. Here is what that does and does not mean, and the reliable way to get a GIF.
How to Add Subtitles to a WordPress Video (VTT vs SRT)
WordPress gives four different official answers about subtitle formats. Here is which one applies to your site, and the exact steps to attach a caption track.
WordPress.com vs WordPress.org Video Limits, Explained
Self-hosted WordPress reads its upload limit from php.ini. WordPress.com reads it from your plan. What sets each number, and what to do at the ceiling.
"Sorry, This File Type Is Not Supported Here" in WordPress
WordPress shows this when a file type is not on the allowed list — a list built per user, not per site. What it checks, and how to fix the upload.
X Ads Video Specs: Two Official Pages, Two Answers
business.x.com serves two live pages both titled Creative ad specs, and they disagree on ad length, file size and product names. Here is what each says.
X Upload Failed Error: Why Your Video Won't Upload
X's own docs say a video can fail even when it is under the maximum size. Here are the causes X actually lists, in scope, and what to change before you retry.
X (Twitter) Video Quality Bad After Upload: Why It Happens
X states it may modify the resolution and bitrate of your video, and 1080p playback is tied to a subscription. Here is what is documented, and what to change.
YouTube Daily Upload Limit: Why There Is No Public Number
YouTube limits uploads per 24 hours but never publishes a number. Here is the official wording, what changes your allowance, and what to do next.
YouTube "Failed (empty .mov file)": The Documented Cause
The YouTube error Failed (empty .mov file) has one documented cause: a QuickTime reference movie. Here is the official fix and how to verify it worked.
Zoom Cloud Recording File Limit: The 150-File Cap
Zoom caps one live session at 150 cloud recording files. Here is what counts toward it, the official way to reset the count, and the limits Zoom never states.
Convert a Zoom M4A Recording to MP3 with FFmpeg
Zoom saves meeting audio as M4A and never offers MP3. Here is the FFmpeg command, what each flag does, and why stream copy cannot do this job.
How to Turn a Zoom Recording Into a GIF
Zoom cloud recordings cannot be embedded on websites. Here is how to find the MP4 behind a Zoom recording and turn one short moment into a GIF.
Audacity Exported MP3 Bigger Than the Original? Here's Why
Audacity's exported MP3 is larger than the file you imported because the export bit rate is higher. Why re-exporting at the original rate is worse.
Audacity LAME Command Line Export Options, Explained
Audacity can hand your audio to LAME on a command line. Here are the official commands, what each one produces, and the only documented ID3v1 route.
Audacity Supported File Formats: What Works Without FFmpeg
Audacity ships with WAV, AIFF, Ogg Vorbis, FLAC and MP2 support. Here is where MP3 fits, what needs FFmpeg, and where two official pages disagree.
CapCut Cannot Import MP4? The Extension Isn't the Problem
Your file ends in .mp4 and CapCut still refuses it. CapCut's help center blames the encoding inside, not the extension — and recommends its own fix.
CapCut Export Failed in Browser? Check the Connection First
CapCut's browser export relies on cloud processing and a stable connection. What the official help center actually says, bandwidth number included.
CapCut 4K Export Requirements on Mac and Windows
CapCut's two official help pages list different minimum macOS versions for 4K export. Here is what each one requires on Mac and Windows, and which to follow.
How to Export Audio Only in DaVinci Resolve (Defaults)
DaVinci Resolve's Audio Only preset defaults to MXF OP-Atom, Linear PCM, 16-bit. Here is what every default means and how to change it before you render.
DaVinci Resolve Exported Video Has No Sound? Start Here
Blackmagic documents only two checkboxes that decide whether a Resolve export contains audio, plus one dropdown that picks the bus. Here is what is verifiable.
DaVinci Resolve H.264 Master Preset: The FFmpeg Equivalent
Resolve's H.264 Master preset defaults to QuickTime, Auto profile, single pass and AAC 320 Kb/s. Every documented default, mapped to its FFmpeg flag.
Discord Server Boost Upload Limit: What Each Level Gives You
Level 2 Boosts raise a server's upload limit to 50MB and Level 3 to 100MB — but only inside that server, and Level 1 raises nothing at all. Every number here has an official source.
Compress Video for Discord: What the 20MB Cap Actually Measures
Discord checks size before compression, so the file on your disk is what counts. The caps by tier and boost level, and where the encoder settings come from.
Gmail Send vs Receive Attachment Size Limit, Explained
Gmail's send and receive attachment limits are different numbers, measured differently — and one of them Google never published. Here is what the docs say.
Google Drive Video Not Playing: The Official Fixes Only
Drive stores any file but plays a short list. The four error messages Google documents, what each one means, and the ten fixes Google actually publishes.
Google Drive: Can't Download a Shared Video? Here's Why
The link opens, the video plays, and there is no download button. Google's own sharing table explains it in one line — and names the setting the owner flipped.
HandBrake Social 25 MB Presets: What the Guarantee Covers
HandBrake's Social presets promise a file of 25 MB or less, but only up to the duration printed in the preset name. Here is what that condition means.
HandBrake and VTT Subtitles: What the Docs Actually List
HandBrake's documented subtitle sources are VOBSUB, PGS, user supplied SRT and embedded SSA/SRT/CC. VTT is not on that list — here is what to do instead.
Instagram Carousel Video vs Reels: What Changes
Instagram says videos in carousels are not reels. Here is the one official sentence that draws the line, what it costs you, and how many clips actually fit.
Instagram Reels File Size Limit: The Number Isn't Published
Instagram publishes no file size limit for Reels posted in the app. The 300MB figure is API-only and 650MB has no source. Here's what is real.
Does iCloud Photos Compress Videos? What Apple Says
Apple says media shared through iCloud Photos keeps its original format, resolution and frame rate — and says the opposite about AirDrop, Messages and email.
Mail Drop Size Limit on iPhone: 5 GB, 1 TB and 30 Days
Mail Drop sends attachments up to 5 GB against a 1 TB pool, and they expire in 30 days. What each number covers, and what to do when you hit one.
iPhone USB-C Transfer Slow? USB 2 vs USB 3 Explained
Apple lists USB 3 on iPhone 17 Pro and USB 2 on iPhone 17. Same generation, very different wired speeds. Here is how to check yours and what to do.
Loom Can't Download Video: The Plan and Role Rules
Loom's download button is gated by plan and by role, not broken. The official permission table, the 20GB ceiling, and what the MP4 leaves out.
FFmpeg: Extract Audio From a Loom MP4 Without Re-Encoding
Loom downloads are always MP4. Here is the FFmpeg command that copies the audio out losslessly, what Loom says is inside the file, and what it loses.
Loom Upload Size Limit: 4 GB or 12 Hours, Whichever Is Less
Loom caps uploads at 4 GB or 12 hours, whichever is less. What that clause really means, why uploads still fail under the cap, and how to get a big file in.
OBS: MKV or MP4? What OBS's Own Docs Say
OBS recommends MKV, warns against recording straight to MP4, and its own formats page contradicts itself about the default. Here is how to choose.
OBS Not Recording Desktop Audio on Mac? Check Your Version
Desktop audio capture in OBS on macOS depends on which OBS and macOS versions you pair. Here is the official matrix, and why hiding a source silences it.
Premiere Pro Export WebM: What Adobe's Format Tables List
Adobe's format tables for Premiere and Media Encoder do not list WebM, VP9 or AV1. Here is what they do list, and the working route to a WebM file.
Adobe Media Encoder Error Log: Location and How to Read It
Media Encoder writes two plain-text logs. Here are the exact filenames, the documented Windows and macOS path, and the two menu items that open them.
Premiere Pro Export Captions: Text Panel vs Export Mode
Premiere documents two caption export routes and their format lists do not match. Here is what each one offers, quoted from Adobe's own pages.
Shotcut Export Taking Forever? Here's What Slows It Down
Why Shotcut still pins your CPU with hardware encoding on, why its hardware decoder ships switched off, and which export settings actually move the clock.
Shotcut Command Line Export With melt: The Official Way
Shotcut's guide gives a one-line melt export command, then warns that Shotcut is not an ffmpeg front end. Here is what that means for your flags.
Convert MOV to MP4 in Shotcut: Why It Always Re-encodes
Shotcut can turn a MOV into an MP4, but never losslessly. Here is the official export route, what the Default preset gives you, and what to check first.
Slack File Too Large: 4 Reasons, Only One Is Size
Slack documents a 1GB per-file limit, so a "file too large" error often isn't about size. The four things that actually block an upload, and how to fix each.
Slack WebM Video Not Playing: What Slack Actually Says
Slack's API lists webm as a filetype, but Slack never documents which video formats play inline. Here is why that gap exists and the fix that works.
SRT vs VTT: One of Them Is a Standard, the Other Is a Convention
Almost every comparison calls SRT and WebVTT two subtitle standards. Only one of them has a specification. That asymmetry explains the timestamp difference, why renaming the file fails, and exactly what you lose converting VTT to SRT.
Teams Recording Download Has No Captions? Here's Why
Teams doesn't save live captions at all. Here is where the captions on a recording really come from, why the file is invisible, and how to get subtitles.
How to Record Audio Only in a Microsoft Teams Meeting
Teams has an official audio-only recording option buried two menus deep. Here are Microsoft's exact steps, who is allowed to use it, and what it produces.
Teams Recording Expiration: The 120-Day Default Explained
Teams recordings and transcripts expire after 120 days by default. Here is what an admin can change, what nobody can change, and what to do first.
Telegram Channel Video Upload Delay: Why Posts Lag
Upload finished but the video is not in your Telegram channel? Telegram's API docs say big-channel videos go to a scheduled queue during server conversion.
Telegram Video Too Large? The Limit Is Not What You Read
Telegram's 2015 blog post still says 1.5 Gb, and it still ranks. Here is the limit Telegram's FAQ states today, who it applies to, and how to get under it.
VLC Convert/Save Not Working? Check the Loop Setting First
VLC's Convert/Save fails in two different ways. VideoLAN's own docs blame GUI loop options for one of them, and say the other can fail with no error at all.
VLC Subtitle Delay: Fix Out-of-Sync Subtitles Fast
Shift subtitles in VLC with g and h in 50 ms steps, set an exact delay, use the three-key advance sync, and learn what units --sub-delay really takes.
FFmpeg: Convert SRT to VTT for the WordPress Video Block
The WordPress Video block reads WebVTT only. Here is the FFmpeg command, and how to check the result against the .vtt example WordPress itself publishes.
WordPress Recommended Video Settings for Upload
WordPress.com's recommended video settings in full — 1080p, h.264, 8 or 12 mbps, AAC 160kbps, Fast Start — plus the two limits most guides drop.
WordPress: File Type Not Permitted for Security Reasons
Why WordPress refuses an upload with this message, why adding the extension in settings is not enough on its own, and the fastest way to get the file in.
X GIF Too Large to Post? It May Not Be the File Size
X's GIF documentation lists four constraints, not just the 15MB size cap. The total pixel count is the one that catches people out. How to check all four.
X Video Stuck Processing? MOV Is the Format X Names
X's own help pages say processing can take up to 30 minutes and that it happens most often with .mov files. Here is the official advice and how to act on it.
Do X (Twitter) Videos Loop? The 60-Second Rule, Two Ways
X loops short videos, but its two official pages disagree on whether exactly 60 seconds counts. Here is the safe cut point and when a GIF is better.
YouTube Processing Abandoned: What It Means and How to Fix
YouTube's docs give exactly three causes for "Processing abandoned" — and VPN is not one of them. Here is what the error means and how to fix it.
YouTube VTT vs SRT Captions: What VTT Actually Adds
On YouTube, WebVTT buys you positioning and three markup tags over SRT, not full CSS styling. Here is what YouTube's own caption format page says.
Downgraded to a Free Zoom Account? Recordings Go in 30 Days
Downgrade a paid Zoom plan to Basic and your cloud recordings are set to be deleted after 30 days. What three official pages say, and what to save first.
Zoom Recording File Formats Explained: MP4, M4A, M3U, VTT
Zoom saves recordings in six file formats. What MP4, M4A, M3U, TXT, CC.VTT and VTT each contain, and why Zoom's developer docs list a different set.
Zoom Recording Not Showing Gallery View? Here's Why
Zoom only records gallery view when two or more attendees have cameras on, and the layout must be set before the meeting starts. Here is how to fix it.
Audacity Export: The (external program) FFmpeg Command
Audacity ships a default FFmpeg command for (external program) export that fails on Mac. What the placeholder means, and every variation the manual documents.
Audacity MP3 Silence at the Beginning: Why It Happens
Audacity's manual calls the gap at the start of an exported MP3 encoder delay and a limit of the format. Here is what causes it and what to export instead.
Audacity WAV 4GB Limit: Max Length by Bit Depth
Audacity stops WAV exports at 4GB. Here are the official hour-and-minute ceilings for 16, 24 and 32-bit, the second 2GB wall, and the official workaround.
Shipping FFmpeg in the Browser: What 32MB of WebAssembly Actually Costs
We run FFmpeg inside the browser tab so video files never get uploaded. Here is what that really involves — the multi-threaded core we had to abandon, the cross-origin isolation we did not end up needing, and the routing bug it left behind.
CapCut Export Error Codes: The Official Fix for Each One
CapCut's help center publishes a fix for 4114, 22113, -1, 4155, 10004, -30007 and 10006, but never defines any of them. Here is the official table.
CapCut Video Too Large to Email? Export It Smaller
CapCut lets you lower Resolution, Frame Rate and Bit rate on export, but it never promises an exact MB. Here is the official path, plus a way to hit a number.
CapCut Supported File Formats: The Official List
CapCut publishes its supported import formats as an image, not text. Here is that table transcribed cell for cell, plus the qualifiers everyone drops.
DaVinci Resolve AAC Audio Codec Not Available: What to Do
Blackmagic's manual says AAC encoding is macOS-only. Its own codec tables say Windows can encode AAC. Here is what each document actually says, verbatim.
DaVinci Resolve Render Failed: What the Manual Actually Says
Blackmagic documents exactly one render-stopping switch and no Render Job Failed error text. Here is what is officially sourced when a Resolve render dies.
DaVinci Resolve Supported Export Formats: The Deliver List
Every container format in DaVinci Resolve's Deliver page, quoted from the official manual, plus the three conditions Blackmagic attaches to that list.
Does Discord Support WebM Files? Two Official Answers
Discord's developer docs list .webm as a natively supported video extension. Its help center never mentions WebM. Here is what each source actually covers, and what that means for your file.
FFmpeg Instagram Reels Settings: Every Flag, Sourced
Instagram hides its Reels encoding requirements in a collapsed block. Here is every line of it mapped to an FFmpeg flag, plus which channel each applies to.
Gmail Attachment Failed but File Is Under 25MB: Real Causes
Your Gmail attachment failed but the file is under 25MB. What Google's docs actually say about how the limit is measured, storage quota, and stalled uploads.
Gmail vs Google Drive Video File Size Limits
Gmail's 25 MB and Drive's 5 TB are two separate rule sets, not one sliding scale. Here is what each one measures, with Google's own wording quoted.
Google Drive "Playback limits" Error on a Video: The Fix
Google Drive shows a Playback limits error when a viewer is not signed in. Here is the official wording, the official fix, and why no view count exists.
Where Did HandBrake's Discord Preset Go? It Was Renamed
HandBrake renamed its Discord presets to Social in 1.6.0. Here is the official replacement table, which Social 25 MB preset to pick, and the catch in the name.
HandBrake Subtitles Not Showing After Encode? Check Char Code
HandBrake finished the encode but the output has no subtitles. The docs name one cause — a wrong Char Code — and warn it can crash your player.
Instagram Reels Length Limit: 20 Minutes, 15, or 3?
Instagram documents three different Reels length limits for three ways of posting. Here is each number, its source, and which one applies to you.
iPhone Keep Originals vs Automatic: Transfer to Mac or PC
Apple says imported HEIF or HEVC media might be converted to JPEG or H.264 — not will. Here is where Keep Originals lives and what it does not cover.
How to Turn an iPhone Video Into a GIF
Apple lists GIF as a format iCloud Photos stores, but the share and export panels offer other choices. Here is the route that works, step by step.
iPhone Video Too Large to Email? Apple's Own Answer
Apple says the attachment cap is your provider's, not iOS's. What really blocks a big iPhone video, why Mail Drop still fails, and how to shrink it.
How to Set a Loom GIF Thumbnail (Animated Preview)
Loom's Animated Thumbnail turns the first few seconds of a recording into a looping GIF cover. How to enable it, embed it, and avoid the thumbnail-code trap.
Loom Free Plan 25 Video Limit: What Counts Toward It
Loom's Starter plan caps your library at 25 videos, and archived ones still count. What the limit blocks, where Loom's docs disagree, and what to do next.
Loom Failed to Process Upload: The Official Causes and Fix
Loom names three causes for a Failed to process upload: over 4 GB, over 60 fps, over 4096 x 2160 — plus a fourth its docs mention only once.
OBS Recording Corrupted: Why the MP4 Won't Play
MP4 has to be finalised before it will play. Here is what OBS's own documentation says about interrupted recordings, and about recovery.
OBS Recording Only Left Channel Audio? The Official Fix
If only the first volume meter lights up in OBS, your audio is stuck in the left channel. How to read the meters, plus the one-checkbox fix OBS documents.
Premiere Pro Won't Embed Captions in MP4 — Here's Why
Premiere's Embed In Output File option is documented for QuickTime and MXF OP1a, not MP4. Here is what Adobe lists, and how to caption an MP4 anyway.
Premiere Pro: File Importer Detected an Inconsistency
Adobe ties this export error to Media Encoder 23.1 on Windows, H.264/HEVC, and folders with accented or double-byte names. Three official fixes.
Premiere Pro Smart Rendering Not Working? Here's Why
Smart rendering needs codec, frame size, frame rate and bit rate to match exactly, and Adobe's support tables do not list H.264. Here is what to check.
Shotcut Export Settings for Instagram and TikTok
Shotcut export settings for Instagram and TikTok: what the official User Guide specifies for web delivery, and where its guidance stops.
Shotcut Hardware Encoder Bigger File Size: Why It Happens
Shotcut's guide says hardware encoding is less compression-efficient, not lower quality. Why GPU exports get bigger, and how to get the size back down.
Shotcut Speech to Text Not Accurate: Timing and Errors
Shotcut's own guide admits auto subtitles start early and contain errors. Here is what the official docs say, what you can fix, and what you cannot.
Slack File Upload Limit: 1GB, With No Per-Plan Tiers
Slack publishes one unconditional upload limit — 1GB per file — and no per-plan table at all. Here is where the 5GB and 50MB figures actually belong.
Slack MOV File Not Playing? What's Actually Going On
Slack has never published a list of video formats it plays inline. Here is what its docs actually say, and why the "MP4 and MOV only" claim has no source.
Teams Caption File Size Limit: The 4MB Upload Cap
Teams refuses caption uploads over 4MB. What that limit covers, why only WebVTT is accepted, and how it differs from the other Teams caption limits.
Teams Recording Too Large to Email? Here's the Real Fix
A one-hour Teams recording is 400 MB by Microsoft's own estimate. Why email refuses it, what the official limits actually say, and how to shrink it.
Teams Video Clip 1 Minute Limit: Why It Stops on Its Own
Teams caps video clips at one minute and ends the recording for you. Here is how that differs from the 4 hour meeting recording limit.
Telegram File Size Limit: 2 GB Free, 4 GB With Premium
Telegram's file size limit is 2 GB, or 4 GB with Premium — but it only applies to the uploader. Here is what a free account can still receive and download.
Telegram Video Streaming Not Working? Blame the File
Telegram video streaming not working? Telegram documents streaming as a file attribute plus a flag set at send time. Here is what the official pages say.
VLC Convert With No Audio? Why It Fails Silently
VLC's Convert/Save can drop your audio track without a single error message. Here is the muxer-versus-codec rule behind it, and the official way to debug it.
VLC Subtitles Showing Question Marks or Boxes? Fix Both
Question marks in VLC subtitles mean the wrong text encoding. Boxes mean the font is missing those characters. VideoLAN separates the two — here is each fix.
WordPress.com Storage Space per Plan: The Full Table
WordPress.com storage runs 1 GB free to 50 GB on Business. Here is the official table, the three legacy-account footnotes, and what does not count.
FFmpeg: Convert WebM to MP4 for WordPress Uploads
WordPress.com names .webm as an extension needing a plugin and tells you to convert before uploading. Here is the FFmpeg command, flag by flag.
WordPress Video File Too Large to Upload? Here's the Fix
Why WordPress rejects a large video, where the "maximum upload file size" number in your dashboard actually comes from, and how to shrink the file first.
X Premium Video Upload Limit on Android: 10 Minutes
X Premium caps Android video uploads at 10 minutes while x.com and iOS get hours. Here is what X's own pages say, and how to make a long clip fit.
X (Twitter) DM Video Size Limit: 512MB Free, 1GB Premium
X's developer docs give direct messages their own video caps — 140 seconds and 512MB free, 10 minutes and 1GB on Premium. Here is every DM media figure.
X Media Studio Upload Specs vs Web Upload, Compared
X's Media Studio spec sheet says in writing that it does not apply to desktop, mobile, or API uploads. Here is what each set of numbers covers.
YouTube SRT File Not Working? Two Rules Explain It
YouTube states two hard rules for SubRip files - plain UTF-8, and no style markup recognized. That explains garbled captions and vanished formatting.
YouTube Video Too Large to Upload? What the Limit Really Is
YouTube's cap is 256 GB or 12 hours, whichever is less — not either/or. Here is which ceiling you hit, why verifying won't raise it, and what to do.
Zoom Cloud Recording Storage Limit: What You Actually Get
Zoom includes 10 GB per licensed user on Pro and Business and 15 GB on Business Plus — but it is pooled account-wide. Here is what happens at 100%.
How to Recover a Deleted Zoom Cloud Recording
Deleted Zoom cloud recordings sit in the trash for 30 days — unless the trash setting was off. How to recover one, and the cases Zoom says cannot be undone.
Zoom Recording Share Link Not Working? Check the Sharing List
Zoom generates a new cloud recording link whenever the shared users or groups change. That, an expiry date and one misleading error explain most dead links.
Audacity AUP3 Won't Open in Other Programs? Here's Why
Audacity's manual says an AUP3 project can be opened only by Audacity. Here is what the project keeps, what it drops, and how to export a usable file.
Audacity Metadata Not Showing in Exported File — Fixed
Audacity discards lyrics and album art on every export, and iTunes cannot read WAV tags. Here is what survives an export, and what silently does not.
Audacity Import Failed: Malformed MP3? Here's the Fix
Audacity's libmad importer rejects MP3s that play fine everywhere else. The official fix is FFmpeg — and the manual says it costs you two tags.
CapCut Export Stuck at 1%? Why It Isn't the 99% Problem
CapCut's help center blames a 1% export freeze on the start of your timeline, not on the save step that stalls exports at 99%. Here is the official fix.
CapCut File Size Limit: What the Official Docs Actually Say
CapCut's help center publishes no import or export file size cap. Here is what it does document, why exports land where they do, and how to hit a target.
CapCut No Audio After Export: What CapCut Actually Documents
Your CapCut export came out silent. Here is what CapCut's help center actually states about missing audio, and how to check if your clip has any.
DaVinci Resolve Export MP3: What the Manual Actually Says
How to export MP3 from DaVinci Resolve's Deliver page, why the manual's own Audio Only section leaves MP3 off the list, and why Resolve only writes CBR.
DaVinci Resolve Hardware Acceleration Encoding, Explained
DaVinci Resolve's hardware encoding checkbox is not the same as the playback decode setting in System Preferences. Here is what each one actually does.
DaVinci Resolve Supported Subtitle Formats: Import vs Export
DaVinci Resolve reads .srt, .srtx, .vtt, .xml and .ttml but writes far fewer. Here is what each export path gives you, quoted from the manual.
Compress Video Under 25MB for Gmail With FFmpeg
Gmail's 25 MB cap counts your total attachments, and Google never says whether it is measured before or after encoding. How to pick an FFmpeg target.
FFmpeg: Extract Audio Without Re-Encoding (And Why the Extension Matters)
Copying an audio stream out of a video is lossless and near-instant — FFmpeg's own docs guarantee it. The part that trips people up is the output extension. Here is the command, the mechanism, and the one error everyone hits.
Is Gmail's 25 MB Limit Per File or Per Email?
Gmail's 25 MB cap applies to your total attachment size in one message, not to each file. Google's exact wording, the Workspace numbers, and what to do.
Google Drive Upload Failed: Not Enough Storage
Drive refuses a video when the file is bigger than the space you have left — and that space is shared with Gmail and Photos. Here is the real rule and the fix.
How to Extract Audio From an iPhone Video
Apple's editing, sharing and export pages all end in a video file. Here is how to get the untouched clip off your iPhone and pull the audio out of it.
iPhone Video Won't Play on Windows? It's HEVC, Not Corruption
Your iPhone clip plays on the phone but not the PC. What Apple documents about HEVC, which resolutions and frame rates trigger it, and how to fix it.
Why Your iPhone Video Looks Blurry When You Text It
Apple says your iPhone can compress video attachments over SMS or MMS. Here is when that happens, and how to control the quality yourself instead.
Loom Creator Lite Recording Limit: Still Stuck at 5 Minutes
Your company pays for Loom and you still get 5 minutes? That is the Creator Lite role, not the plan. What Loom's docs actually say, and what to do.
Loom Recording Mono Audio on Windows: Why It Happens
Loom's own encoding table lists the Windows desktop app as 1 Channel (Mono) and the Mac app as up to 2 Channel (Stereo). Here is what that means.
How to Send a Loom Video by Email: GIF, Link, or Attachment
Loom suggests an embedded GIF thumbnail for email, not a player. Here is the GIF route, the Apple Mail setting, and when an MP4 attachment works.
How to Burn Subtitles Into Video in Premiere Pro
Premiere Pro burns captions from one dropdown in Export mode. Here is the exact path, Adobe's wording for all four options, and the channel rules.
Premiere Pro CBR vs VBR: Which Is Better for Export?
Adobe's own wording, quoted: CBR plays back more reliably, VBR tends to look better. What each bitrate control does and which one to pick.
Premiere Pro Maximum Resolution: Sequence and Import Limits
Premiere caps sequence frame size at 10,240x8,192 and imports at 256 megapixels. Here is what each ceiling covers and what happens when you exceed it.
How to Compress a Video for Email in Shotcut
Shotcut has no email preset and no size formula. Here are the export knobs its own documentation describes, and the loop that gets you under a cap.
Shotcut Hardware Encoding: Which Codecs Are Supported?
Shotcut's own guide says hardware encoding is H.264 and HEVC only, then lists AV1 encoders on the next page. Here is what each official source names.
Shotcut Subtitles Out of Sync? Here's the Official Cause
Shotcut's user guide names the cause: cutting or moving clips after you add subtitles breaks sync. Here is the fix, the right order, and 4 more causes.
Email a File to a Teams Channel: The 10 MB Attachment Limit
Emailing a Teams channel caps each attachment at less than 10 MB — the tightest of Teams' three upload paths. The official numbers and what to do.
How Big Is a Teams Meeting Recording? 400 MB per Hour
Microsoft puts a one-hour Teams recording at 400 MB. Where that number comes from, what it leaves out, and the 1.5 GB cap that splits long files.
Add SRT Captions to a Teams Recording: Convert to VTT
Teams' video player accepts WebVTT caption uploads only. The official upload route, the 4MB ceiling, and what Microsoft strips out of your file.
FFmpeg Faststart and WordPress: What the Docs Say
WordPress asks for Fast Start / Web Optimized by name on two official pages. What the docs state, what they leave out, and where stream copy fits.
WordPress Multisite Max Upload File Size: The Hidden Cap
WordPress Multisite adds a network-level max upload file size documented at 1500 KB, separate from php.ini. Where it lives and what to do when you hit it.
VideoPress Maximum Upload Size: 6 GB, With Two Catches
VideoPress documents a 6 GB maximum upload size, while WordPress.com calls 2 GB the reliable ceiling. Here is what each number actually covers.
X Live Studio OBS Encoder Settings and RTMP Specs
X publishes two different RTMP encoder spec sheets for live video — 12 Mbps on one page, 9 Mbps on the other. Here is what each one says and how to set up OBS.
How Long Can a Video Be on X? All Five Official Limits
X's own pages publish five different video length limits — 140 seconds, 20 minutes, 125 minutes, ~3 hours and 4 hours. Here is the scope of each.
Does X (Twitter) Support VTT Subtitles? What the Docs Say
X's API enum lists text/vtt, but X's help centre documents only .srt. Here is what each official page says, and which file to upload today.
Zoom Auto-Delete Cloud Recordings: The Real Timeline
Zoom's auto-delete for cloud recordings runs once a day and adds a 1-day grace period, so a 30-day policy usually deletes later. The official timeline.
Zoom Recording on External Hard Drive Corrupted? Here's Why
Zoom's own docs say external and network storage for recordings "can result in data loss." What breaks during conversion, and how to set the path back.
Zoom Recording Stuck on Processing? What Zoom's Docs Say
Zoom says cloud recordings take about 2x the recorded length to process. Here are the causes Zoom lists for a stuck one, the 24- and 48-hour lines, and the fix.
How to Export Multiple Files by Label in Audacity
Split one recording into separate files with labels: the real menu path, the 00- and 01- numbering rules, and the metadata bug Audacity admits to.
Audacity Exported File Has No Sound? Four Documented Causes
Your Audacity export is silent or missing a track. Here is what the manual says actually gets written to the file, and how to check each cause.
Audacity FFmpeg Library Not Found: Why It Is Not Included
Audacity cannot bundle FFmpeg because of software patents. Here is what the optional library really unlocks, and when you do not need it at all.
How to Export Audio Only From CapCut (Source-Checked)
CapCut's help center never documents an audio-only export. Here is what it does document, how to check your export panel, and the route that always works.
CapCut Export Length Limit: What the Docs Actually Say
CapCut's help center publishes no export length cap. The 15-minute figure everyone quotes is a mobile Pro-prompt trigger that varies by region.
CapCut Export Stuck at 99%? What's Actually Failing
CapCut's own help page says the render is already done when an export stalls at 99% — what fails is the save or download step. Here is the fix, per platform.
DaVinci Resolve Export Quality Loss: What Actually Causes It
Your DaVinci Resolve export looks softer than the timeline? Three render checkboxes and a missing passthrough column explain most of it. Official sources only.
How to Export an SRT File from DaVinci Resolve
DaVinci Resolve has two documented subtitle export paths and they do not offer the same formats. Here is which one gives you SRT, WebVTT, IMSC1 or DFXP.
DaVinci Resolve H.264 Export: Studio Only? Three Answers
Blackmagic's codec list gives H.264 export three different answers — one for macOS, one for Windows, one for Linux. Here is the verbatim wording for each.
How to Email Just the Audio From a Video in Gmail
Gmail's 25 MB cap is judged on your total attachment size, not per file. Extracting the audio keeps the message inside Gmail's rules instead of Drive's.
Gmail Video Too Large to Send? Here's What Actually Happens
Gmail doesn't reject an oversized video — it removes the attachment and adds a Google Drive link. Here's what that changes, and how to get under the cap.
Google Drive's 750 GB Daily Upload Limit, Read Literally
Google documents a 750 GB per-user, 24-hour upload and copy limit for Drive. Here is the exact wording, what it counts, and which help pages it appears on.
iPhone Cinematic Mode 4K Settings and Resolution Limits
Cinematic video records at 1080p 30 fps by default. Here are the exact 4K options Apple documents, where to switch them, and why ProRes is off the table.
iPhone Spatial Video File Size: 130 MB a Minute
Apple puts one minute of spatial video at approximately 130 MB, twice regular 1080p 30 fps video. Where that number comes from and what it excludes.
What Video Format Does iPhone Record In? MOV or MP4
Apple's spec sheets name the codecs an iPhone records - HEVC, H.264, ProRes - but not the container. Here is what the official pages actually say.
Loom Custom Size Recording Quality: Why a Small Area Hurts
Loom's minimum custom size is 251 x 251 pixels, and a capture area that is too small makes Loom downgrade the recording resolution. Here is the fix.
Loom Still Has a 5-Minute Limit After Upgrading? Here's Why
Paid for Loom but the recorder still stops at 5 minutes? The cap follows your account, workspace and role, not your receipt. Here is how to find which one.
Loom WebM or MP4? What It Records vs What You Download
Loom's Chrome extension encodes into a WebM container, but every Loom download is .MP4. Here is what that split means for quality, audio and editing.
How to Export a Video Under 25MB in Premiere Pro
Premiere Pro can target a file size directly. Here is the route Adobe documents, what Maximum File Size really promises, and why bitrate tables are guesses.
Premiere Pro Export Washed Out on Mac: QuickTime Gamma
Premiere exports look pale on macOS because macOS displays at 1.96 gamma while Premiere shows 2.4. Why Viewer Gamma will not fix the exported file.
Premiere Pro VTT Export: WebVTT Is Not in the Menu
Premiere Pro lists caption formats on four official pages, and VTT is on none of them. What each list contains, where they disagree, and how to get WebVTT.
Shotcut Export Preset Not Working on Another Computer?
Copied a Shotcut export preset to a second PC and the export fails or looks wrong? Here is what the official guide says can happen, and how to narrow it down.
Shotcut Hardware Encoder Not Detected: What It Means
Shotcut found no hardware encoder? Here is the official criterion for that message, why the Configure dialog shows unchecked encoders, and what to check next.
How to Import VTT Subtitles in Shotcut Without Offset
Shotcut imports SRT, VTT, ASS and SSA. The official guide warns subtitles land at the cursor position — here is the import order that keeps timing right.
Can't Share a File in a Teams Group Chat? Two Limits
Microsoft documents two participant thresholds for Teams file sharing: 100 in a group chat and 250 in a meeting. Here is what each one actually breaks.
Why Did My Teams Recording Split Into Two Files?
Teams cuts a recording at 4 hours or 1.5 GB and restarts it. Here is what Microsoft's own pages say, where they disagree, and what to do with both files.
Teams Transcript VTT to SRT: The FFmpeg Command
Teams downloads transcripts as .docx or .vtt only. Here is the FFmpeg command for SRT, and why Microsoft's own format rules make renaming fail.
TikTok Video Size Limits: What Is Officially Documented, and What Everyone Is Guessing
Most pages state a TikTok upload limit as fact. TikTok does not publish one for in-app posting. Here is what its own developer documentation actually specifies — size, resolution, frame rate, duration, codecs — and how to hit it.
WordPress.com Video Upload: Which Plan Do You Actually Need?
WordPress.com's own docs give three different plan requirements for uploading video. Here is what each page says, which block it applies to, and what to do.
FFmpeg: Compress Video for WordPress to the Official Spec
Every flag in this FFmpeg command maps to a row of WordPress.com's recommended video settings table — 1080p, h.264, 8mbps, AAC 160kbps, Fast Start.
WordPress upload_max_filesize vs post_max_size: Which Wins?
WordPress uses the smaller of upload_max_filesize and post_max_size. Here is the core source code that proves it, and why raising one alone changes nothing.
X API 403: Not Allowed to Post a Video Longer Than N Minutes
Your upload finalized cleanly, then the Post was refused with a 403. What X's two separately enforced gates do, and how media_category triggers this.
How to Add Permanent Subtitles to an X Video
X's Media Studio allows one subtitle file per video and hides it unless the viewer's language matches. Here is how to burn captions in instead.
Twitter Video File Size Limit: Four Official Numbers
X's help centre says 512MB free and 16GB Premium. Its Premium page, Media Studio page and developer docs say something else. All four numbers, side by side.
Zoom Can No Longer Save Closed Captions: What Changed
Zoom stopped letting users save or download closed captions in May 2026. What the two official dates mean, what still works, and what to use instead.
Zoom's double_click_to_convert.zoom File: How to Convert It
Zoom leaves double_click_to_convert_01.zoom behind when a recording never finished converting. How to convert it by hand on Windows and Mac.
Zoom Recording Won't Play on Another Computer? Here's Why
Zoom ties a computer recording to the machine that made it. Here is what that rule actually covers, why copied folders fail to open, and how to hand one over.
Audacity Can't Import MP4? Mac May Not Need FFmpeg
Audacity as shipped does not import MP4. Every forum answer says install FFmpeg — but Audacity's own FAQ page carves out an exception for Mac.
Audacity Disk Full Error When Exporting: How to Fix It
Audacity says disk full or not writable when you export. Here is what the message covers, the official GB-per-hour math, and the one fix to avoid.
Audacity FLAC Compression Level: Which One to Actually Use
Audacity's FLAC export offers levels 0-8. The manual says level 8 is rarely more than a few percent smaller, but three or four times slower. Here's the call.
CapCut Burned-In Captions vs SRT File: Which to Export
CapCut's export panel has two separate options, Caption Export and Video Export. Here is what each path gives you and when the SRT route is closed.
CapCut Has No 4K Export Option? Here's What to Check
No 4K in CapCut's export panel? The official help center blames frame rate, timeline resolution, templates and device limits. Here is what to check first.
CapCut No Watermark Option Greyed Out? Here's Why
CapCut greys out No Watermark in the export panel alongside 4K and 60fps. Here is what CapCut's help center actually says, and what to check first.
How to Burn Subtitles Into Video in DaVinci Resolve
Resolve burns the currently selected subtitle track, not every track. Here is the exact Deliver page path, all four Format options, and the MP4 caveat.
DaVinci Resolve 4K Export: Is It Studio Only? Docs Disagree
Blackmagic's codec list says encoding 4K and up needs Studio. Its product pages say the free version finishes UHD. Both quotes, both URLs, checked here.
DaVinci Resolve Rendering Very Slow? Check This Dropdown
DaVinci Resolve rendering very slow? A documented Render speed throttle can cap output at 1 to 50 percent — plus three switches that trade quality for time.
Split a Video Into 140-Second Clips for X With FFmpeg
The FFmpeg segment command for cutting a long video into 140-second pieces for X, and what X's help centre and developer docs each publish as the limit.
Gmail Attachment Size Limit: What 25 MB Actually Measures
The Gmail attachment size limit is 25 MB for personal accounts, but Workspace editions differ and sending and receiving are measured differently. With sources.
How to Email a Large WAV Audio File When Gmail Refuses It
Gmail caps personal accounts at 25 MB of total attachments. Here is how to decide whether converting your WAV to MP3 fits, and what to do if it still does not.
Google Drive Max File Size Limit: 5 TB, With One Catch
Google Drive's maximum file size is 5 TB, but only if you bought that much storage. The official numbers, the two units Google publishes, and what to do.
iPhone Action Mode Resolution Limit: It Caps at 2.8K
Apple caps Action mode at 2.8K. Here is the documented ceiling, how it compares with regular 4K video on iPhone, and what to do with the file.
iPhone High Efficiency vs Most Compatible: What Each Records
High Efficiency records HEIF and HEVC; Most Compatible records JPEG and H.264. Plus the trap: the Share sheet's Most Compatible is a different setting.
How Much Storage Does 1 Minute of iPhone Video Take?
Apple publishes one per-minute figure: about 65 MB for 1080p30 and 130 MB for spatial video. Here is what that number covers, and what it does not.
Loom 4K Recording Requirements: What Your Machine Needs
Loom records 4K only in the desktop app, on a paid plan. Loom's help center publishes two different system-requirement lists — here is both, side by side.
Loom's 5-Minute Recording Limit: Who Actually Hits It
Loom caps Starter recordings at 5 minutes, and Creator Lite roles hit it inside paid workspaces too. Plus: Loom's own docs give two paid-plan numbers.
Loom Chrome Extension vs Desktop App Quality: The Real Gap
Loom's extension tops out at 1080p in VP8/VP9 WebM; the desktop app reaches 4K in H.264. Here is what Loom's own encoding table says, row by row.
Premiere Pro Maximum File Size Export: How to Set It
Adobe documents four cases where Premiere's Maximum File Size misses. Here is how to set the option and what to check before trusting the estimate.
Premiere Pro Exports Only One SRT Caption Track at a Time
Premiere Pro's SRT sidecar export supports one stream per file. Here is what each caption sidecar format allows, and which track Premiere picks by default.
How to Use Previews in Premiere Pro to Speed Up Export
Use Previews exports from render files you already made instead of re-rendering. Includes the Media Encoder step Adobe says you must repeat per job.
Shotcut Custom Export Preset: Create, Save, and Share It
How to build a custom export preset in Shotcut, what to delete in the preset text box, where the preset file lives, and why Shotcut must restart to see it.
Shotcut Export Failed? Use Shotcut's Own Fix Sequence
Shotcut export failed or stuck? The official FAQ gives one sequence: stop the job, disable parallel processing, then map the failure percent to your timeline.
Shotcut SRT to VTT: How to Get a WebVTT File
Shotcut imports VTT but exports subtitles only as SRT. Here is how to export the subtitle track and convert that SRT to WebVTT in your browser.
Teams File Won't Upload? Check the File Name First
A Teams upload can fail on the file name alone. Microsoft blocks a specific character list, leading and trailing spaces, and a set of reserved names.
Teams Meeting Recording Time Limit: 4 Hours or 1.5 GB
Teams caps one meeting recording at 4 hours or 1.5 GB, whichever comes first. Here is why the size gate usually fires before the time gate.
Download a Teams Meeting Transcript: .docx or .vtt
Teams offers exactly two transcript download formats. Who is allowed to download one, where it lives after the meeting, and how to get an SRT out of it.
WhatsApp Says Your Video Is Too Large? You Are Probably Using the Wrong Send Path
WhatsApp has two different ways to send a video, with wildly different size limits. Picking the right one solves the problem without compressing anything — and when you do need to compress, here is how to do it without uploading your video.
WordPress Supported Video File Types: Two Official Lists
The video section of WordPress core's MIME map is exactly fifteen lines. WordPress.com lists nine. Both official lists, verbatim, and why they disagree.
WordPress Podcast Audio File Format: Why MP3 Wins
WordPress.com's podcast docs say .mp3 works everywhere, .m4a fails on Spotify, and .ogg and .wav are rejected. Here is how to get MP3 out of a video.
WordPress Maximum Upload File Size: Who Actually Sets It
WordPress core has no maximum upload file size setting. Here is where the number on your Media screen really comes from, and what to do when a file is refused.
X (Twitter) Subtitles Not Showing? Here's What X Checks
Your SRT uploaded fine but no captions appear on X. X hides subtitles when the viewer's language doesn't match the track — plus the SRT rules that fail.
X Video Too Long Error: Check the Format Before the Length
X's "Video too long" error often is not about duration at all. Here is the official explanation, the right order to check things, and which limit applies.
Zoom CC.VTT vs VTT File: What Each One Actually Contains
Zoom saves two different VTT files with a cloud recording. CC.VTT is the closed caption file, VTT is the audio transcript — here is how Zoom defines each.
Zoom Error Code 614: What It Actually Means
Zoom attaches Error Code 614 to exactly one cause — low disk space while a recording converts. What it means, how to clear it, and what it is not.
Zoom Recording File Size Per Hour: The Numbers Zoom Gives
Zoom states screen sharing uses about 20MB per hour and video about 200MB per hour, and calls both approximations. Here is why your files vary so much.
Discord Says Your File Is Too Large? Here's What Actually Counts
Discord caps free uploads at 20MB, but the number you see is not always the number that stops you. Here is how the limit is measured, why Android hits it more often, and how to shrink a video without uploading it anywhere.
Discord Upload Limit: Android vs Desktop, Explained
Discord's upload limit is the same 20MB on Android and desktop, yet Android users hit it more often. Here is the pre-compression check that explains why.
HandBrake: Burn Subtitles Into MP4 (Only 1 Track Allowed)
HandBrake burns exactly one subtitle track into an MP4, refuses to pass PGS through, and flattens SSA animation. Here is the workflow and the three limits.
VLC Extract Audio to MP3: What VLC's Docs Actually Say
The official VLC page for MP3 extraction is still a TODO stub. Here is the only documented acodec=mp3 command and what each flag does.
YouTube Video Quality Drops After Upload? Here's Why
Your YouTube upload looks soft? The cause is often playback, not compression. What YouTube's own docs say about conversion, VP9-only 4K and dropped 5K.
How to Compress a Video Without Losing Quality
Learn how to reduce your video file size without visible quality loss. Covers bitrate, CRF, codec basics, and browser-based compression with no upload needed.
What is Clapr?
Clapr is a set of browser-native video and audio tools. Your files never leave your device.