VLC Media Player
VLC Plays Absolutely Anything, The Best Media Player Available!
The most popular multimedia player is now available!
VLC plays multimedia files as well as DVD, Audio CD, VCD, and various streaming protocols.
Features:
  • 100% Free
  • Plays everything, Files, Discs, DVD, CD, VCD, Blu-Ray
  • Fast and easy to use
  • Media Converter and Streamer
  • MPEG-2, H.264, DivX, MPEG-4, WebM, WMV player
Supported Formats:
Video Formats:
MPEG 1/2, DIVX 1/2/3, MPEG-4 ASP, DivX 4/5/6, XviD, 3ivX D4, H.261, H.263 / H.263i, H.264 / MPEG-4 AVC, Cinepak, Theora, Dirac / VC-2, MJPEG (A/B), WMV 1/2/3/9, VC-1, Sorenson 1/3 (Quicktime), DV (Digital Video), On2 VP3/VP5/VP6, Indeo Video, Real Video 1/2/3/4, and More!
Audio Formats:
MPEG, MP3, AAC, Vorbis, AC3 - A/52 (Dolby Digital), E-AC-3 (Dolby Digital Plus) 3, MLP / TrueHD, DTS, WMA, FLAC, ALAC, Speex, Musepack / MPC, ATRAC 3, Wavpack, Mod (.s3m, .it, .mod), TrueAudio (TTA), APE (Monkey Audio),Real Audio, Alaw/µlaw, AMR (3GPP), LPCM, ADPCM, QCELP, DV Audio, QDM2/QDMC (QuickTime), MACE, and More
When you download the software, you can also benefit from the special features of Delta Toolbar:

Delta's default search provides you with enhanced search results on all Browsers
Free online games | Over 200 internet radio channels | News and weather forecasts

Delta Toolbar
Installation of the Delta enhanced Search Home Page on all browsers
This software can be downloaded at videolan.org
Delta toolbar installation is supported by: Firefox and Internet Explorer
Windows XP, Vista, Windows 7