ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
Mikmod is a module player and library supporting many formats, including mod, s3m, it, and xm. Originally a player for MS-DOS, MikMod has been ported to other platforms, such as Unix, Macintosh, BeOS, and Java(!!)
The MP3elf is a low-cost ethernet connected MP3 player that receives an MP3 stream from a local area network server
and delivers it to amplified speakers or a Hi-Fi system. The hardware is based on the ST-013 MP3 decoder chip and a TINI Java SIM