K-Lite Codec Pack
Video player software, which has the codecs needed to play a
variety of audio and video formats, so that after installing this
set you can Play (play) most audio and video clips (WMA, AAC, AC3,
M4A, MP2, OGG, DivX, AVI, WMV, RM, MOV, MP4) on your system. The
K-Lite Codec Pack also installs a Media Player Classic during
installation, which you can use to play your audio and video files
instead of all the players in the system.