After installing windows 7 Beta on your computer you might face some error while playing some formats of video in windows 7 media payer and in media center.
However windows 7 Beta comes with some more additional codec’s bundled with it like DIVX, H.264 video and AAC audio, but still multimedia files cannot be played in windows 7 with out installing the right codec’s, so you can play any Divx or MP4 video. Windows 7 Beta has windows media player 12 and media center which cannot play most of the formats of video with out installing the codec packs.
So, we are going to list all the codec packs available on the web to resolve the video not playing problem in windows 7.