XP Codec Pack is one of the most completed codec packs which helps you to play all major audio and video formats.

And... to enjoy your multimedia experience, instead of 3 or 4 different players you get one, simple integrated player that plays almost all audio and video files: Media Player Classic.

Includes:

AC3Filter 2.5b
AVI Splitter 1.6.4
CDXA Reader 1.6.4
CoreAAC (AAC Decoder) 1.2
CoreFlac Decoder 0.4
FFDShow MPEG-4 Video Decoder 2008.12.19
GPL MPEG-1/2 Decoder 0.1.2.0
Matroska Splitter 1.6.4
Media Player Classic 6.4.9.1
OggSplitter/CoreVorbis 1.6.4
RadLight APE Filter 1.0.0.4
RadLight MPC Filter 1.0.0.4
RadLight OFR Filter 1.0.0.4
RealMedia Splitter 1.0.1.2
RadLight TTA Filter 1.0.0.2
The Codec Detective 2.0
VSFilter (DirectVobSub) 2.41