Traditionally, recording directly to a "standard" MP4 was extremely risky; if your computer crashed or lost power before the recording finished, the entire file would be corrupted and unrecoverable. Key Feature: Fragmented MP4 (fMP4)
While highly useful, this feature has a few limitations depending on your tools: 437.mp4
: 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. Traditionally, recording directly to a "standard" MP4 was