.moov

MP4 metadata atom indexing the tracks and sample tables of an MP4 media file

Not a file (scheme/atom)

Format facts

MIME type: application/x-mp4-moov
Apple UTI: custom
Stock Quick Look: no stock preview
Planned approach (census): not-a-file
Icon hint: generic-icon
Prevalence: rare

Renderer note (from the census)

parse moov atom for duration/tracks

Gotchas: required for playback