Maz Sound: Large collection of MOD/S3M/XM/IT Tracking softwar

Ogg Vorbis: Official web site of Ogg Vorbis, belonging to Xiph.Org, offers information about the Ogg Vorbis audio format, lists sites which provide music in this format, describes third party software available for playing Ogg Vorbis files, and presents documents for developers

Winamp: Windows high-fidelity music player with a lot of original features and support for many formats of audio files