Since the Windows Media Codecs pack is not compatible with WMP 12, you can try to download MP4 codec from the below third-party codec pack sites we select. Worth mentioning, Windows Media Player 12 has natively support for MP4 files, but you may also encounter the MP4 won't play problem on Windows Media Player 12. This MP4 codec pack is available for Windows Media Player 7.1, XP, 9 series and 10. To enable Windows Media Player to play MP4 videos successfully, you can download Windows Media Codecs pack which contains MP4 codec from Microsoft official website: and follow the guide Microsoft offers to install the setup for your WMP. And the no video, no audio or video audio out of sync problem is also a big headache. MP4 format is encoded with MPEG-4, H.265, H.264, etc but Windows Media Player before version 12 can normally play H.264 files so Windows Media Player not playing MP4 is an occasional case. Question is if I should install CCCP or to install ffdshow etc manually.For specific media players like Windows Media Player and VLC, you'd better download MP4 codec from their official website to ensure the safety of the codec pack. Need to install codecs and filters so I can use some formats I can no longer use. I recently uninstalled CCCP from my machine (trying to fix some problems with MyTv but it wasn't a code issue) and no longer have FFDshow etc. It does install all the necessary codecs/filters you need in one single download so using it makes life easier (maybe).Īnyway it is workign very well outside MP at least, question is if it can cause any problems with MP. Seems to work very well with the settings CCCP use for filters and codecs.

Had issues where I suddenly got crashes (caused by something WMP did) when viewing some videos which was fixed after resetting to CCCP default settings. Also CCCP works very well and I have had codec problems which disappared after installing CCCP. However CCCP is more of a filter pack and is considered safe by most people. I know, codec packs are generally evil and causing problems.

Cccp project safe