Free Audio Players
VLC
VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network.
http://www.videolan.org/
Audacity
Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.
http://audacity.sourceforge.net/
Winamp
Winamp is a low resource hogging, skinnable, multi-format, freeware audio player made by Nullsoft, part of Time Warner.
http://www.winamp.com/
iTunes
iTunes is a media player, written by Apple Computer, for playing and organizing digital music, video files, and purchasing digital music files.
http://www.apple.com/itunes/
foobar2000
Foobar2000 is an advanced audio player for the Windows platform. Some of the basic features include ReplayGain support, low memory footprint and native support for several popular audio formats.
http://www.foobar2000.org/
