Short answer
MP4 is usually the safest video sharing format, but file size, duration, codec, and audio quality still affect whether recipients can open it smoothly.
MP4 Sharing Compatibility Guide
MP4 is usually the safest video sharing format, but file size, duration, codec, and audio quality still affect whether recipients can open it smoothly.
Why it matters
- Trim dead time before sharing
- Compress large clips for upload limits
- Test playback after conversion
What to know
Short MP4 clips are useful for showing bugs, walkthroughs, and review notes without long meetings.
Compressing or trimming before upload can reduce failed attachments and slow previews.
When a platform rejects a file, converting from another source format to MP4 is often the first fix.