

You can turn this off so Handbrake always uses MP4, which is probably the more sensible approach for most users. Weirdly, that player does support video, just not long video with chapters or subtitles or stuff like that. Handbrake defaults to M4V if you are using features that Apple's simpler player designed for music doesn't support. Apple started using the M4V extension for MP4 files that contain video, despite that it's easy for anything that understands the MP4 format to just look in the file and see if it contains video or just audio.įrom Handbrake's point of view nothing changes but the extension. Input Formats: 3GP, ASF, AVI, DIVX, DVR-MS, F4V, FLV, M4V, MKV, MOV, MP4, MPEG, MPV, QT, RM, WMV, and others (over 100 total) Output Formats: AAC, AC3. The Apple Quicktime and/or iTunes player had (or still have?) an issue where it doesn't recognise MP4 as a video extension since Apple also made heavy use of the MP4 container format for music files which are audio-only, so it wouldn't play certain videos with that extension.

It's the same file, just a different extension. M4V is an alternative file extension you can use for the MP4 format.
