: The ability to demux (separate) audio from video, edit it (e.g., mastering), and re-sync it perfectly.
: A proper MP4 allows for advanced metadata, such as artist name, song title, and album art, which allows media players like MusicBee to organize files effectively. musboomp4
If you are looking to create or edit these files, a "proper" feature set in editing software should include: : The ability to demux (separate) audio from
: These are created automatically by YouTube when a music distributor uploads your audio. edit it (e.g.