VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Vinyls - Vinyls is a music player that lets you listen to your music without any complicated setup.
foobar2000 - An advanced freeware audio player for the Windows platform.
Poolside FM for iPhone - A pool party in your pocket
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
Qiplex Discographer - Discover missing releases of the artists you love!