Winamp
Winamp is a free multimedia player made by Nullsoft. It supports numerous audio and video formats. It also plays streamed video and audio content, both live and recorded, authored worldwide. It has an extremely customizable media library, and allows you to rip and burn your favorite music CDs. Winamp has thousands of skins and plug-ins that allow you to change the look-and-feel of the player, as well as add new features. The player also has access to thousands of free songs, videos and online radio stations from SHOUTcast Radio and AOL Radio with XM.
Sonique
Sonique is an audio player capable of handling MP3 files, Microsoft Windows Media files, audio CDs, and various other audio formats. It features a dynamic, windowless interface, complete with a fully animated menu system. Additional features include a full-featured playlist editor; a variety of unique output visualization modes; plug-ins; a robust control set featuring pitch, jog, and shuttle; support for skins; a balance and amplification adjustment; and a 20-band equalizer with spline-based level adjustment. Sonique supports many audio formats, including WMA, MPEG, MP2, MP3, WAV, MOD, XM, IT, S3M, and CD audio.
AtomixMP3
AtomixMP3 is the sharpest MP3 DJ mix software ever, providing one-click BPM beat matching, beat-aware loop engine, live recording, optional dual soundcard output and master tempo functionality.
UltraPlayer Media Player
UltraPlayer handles the playing chores for MP3, WMA, RealAudio, WAV, MIDI, CD Audio, Internet radio, AND video files (Windows Media, AVI, MPEG, Real). It looks and sounds great, it's lightweight and powerful.
dBpowerAmp Audio Player
dBpoweramp Audio Player Audio Player Like No Other. If ever there was a complete player this is it! dAP plays Mp3s, WMA, Ogg Vorbis, Monkeys Audio, Real Audio, Wave and Midi, and many more, something for everyone.