Winamp

http://www.winamp.com/media-player/en

Windows Media Player

http://windows.microsoft.com/en-us/windows/downloads/windows-media-player

Media Player Classic

http://mpc-hc.sourceforge.net/download-media-player-classic-hc.html

QuickTime Player

http://www.apple.com/quicktime/download/

RealPlayer

http://www.real.com/

VLC Media Player

http://www.videolan.org/vlc/

K-Lite Mega Codec Pack

http://www.free-codecs.com/download/k_lite_mega_codec_pack.htm

Sam Broadcaster

http://spacialaudio.com