437.mp4 -

: Some older video editors or media players may struggle to open fragmented files directly.

: Previously, users had to record in .mkv format (which is naturally crash-safe) and then "remux" it into .mp4 for compatibility with editors. fMP4 eliminates this extra step. 437.mp4

: It generally works best with standard codecs like H.264 or H.265; more specialized formats may still require standard MP4 containers for full compatibility. Writing an MP4 Muxer for Fun and Profit - OBS Studio : Some older video editors or media players

: Because the segments are decodable on their own, playback can start after downloading only a tiny portion of the file, making it ideal for high-efficiency streaming. 437.mp4

While highly useful, this feature has a few limitations depending on your tools: