Traditional Culture Encyclopedia - Photography and portraiture - What are the uses of MP3, MP4 and MP5?

What are the uses of MP3, MP4 and MP5?

Mp3 can listen to songs, record, read books and make sounds. ..

Mp4 can listen to songs, record, read books, voice, radio, play Tetris and look at pictures. The most important thing is that it has a video function.

Mp5 listens to songs, records, reads books, sounds, watches videos, plays simulated games, takes photos, and supports video output, but there are too many pirated mp5.