Go to this site and download GSpot and Avicodec video analyzers and open your file with one of them and you are going to find out what codecs you may need.Also for sound problem AC3 filter is a must and have to be install on your computer. Good players like VLC or BSplayer or Media Classic work better and use their own codecs and best of all are free. http://www.free-codecs.com/
I recently got the excorcist but when i try open in windows media player 10 there is no sound, the same problem happens when i try open in power DVD, It’s done it with a few films, i beleive i need some sort of audio codec ut don’t know which. Anyone please help.