K-Lite Codec Pack
Video player software, which contains the necessary codecs to play
a variety of audio and video formats, so that after installing this
package 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 Media Player Classic during
installation, which you can use to play audio and video files
instead of all other players in the system.