Mediaplayer
Download windows media player according to which windows operating system you are running on your computer.
http://www.microsoft.com/windows/windowsmedia/9series/gettingstarted/download/download.asp
Musicmatch
Find music videos, internet radio, music downloads and all the latest music news and information on yahoo! music
http://www.musicmatch.com/
Winamp
Winamp, the ultimate media player, allows you to manage and play audio and video files, rip and burn cds, enjoy free music, access and share your music and videos remotely, and sync your music to your ipod , creative, and microsoft plays for sure devices . winamp features album art support, streams audio and video content, and provides access to thousands of internet radio stations and podcasts.
http://www.winamp.com/