MPEG LAYER-3 (MP3) vs MPEG LAYER-4 (MP4)

[vfx]

mp3 is for music and mp4 is for movies but is it possible to encode mp4 as a regular music file (no video attached, pure music)?

[totalXSive]

Possibly, but not with any software from this site. If it was possible then only a handful of players would be able to play the files.

If you want a better music format, use Ogg Vorbis.

[Spoon]

The closest to mp4 you can get is AAC (Advanced Audio Compression).