An MP3 player is either a program which allows you to play MP3 music files, or a device similar to a USB CompactFlash which allows you to play MP3 files.
There are many software MP3 players available and many people have their own favourite versions.
See the MediaPlayer page for some Linux software players.
An example of a hardware MP3Player can be found here:
No other page links to MP3Players yet.
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