KMPlayer is All in one media player, covering various formats such as VCD, DVD, AVI, MKV, Ogg Theora, OGM, 3GP, MPEG-1/2/4, WMV, RealMedia, QuickTime etc.
VLC Media Player is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVD, Audio CD, VCD, and various streaming protocols.
JetAudio Basic is a powerful multimedia player, that integrates basic functions for playing video and audio, with powerful tools for recording CDs and conversion between multiple file formats.