Dont know if this has been posted before but its a pretty neat dos player

http://www.damp-mp3.co.uk/

DAMP is a free MP3 player for DOS, which not only allows the playback of MP3 files, but also the visualisation of the audio through responsive image manipulation.

DAMP also contains many of the features you'd need in an in-car MP3 player or jukebox.

It is not recommended for use under WindowsNT, WinME or Win2k, but does work in a Windows 95 DOS box, and also under Win98.