Why can I not play some movies? I have I believe all the necessary codecs, I have FFD show installed, but when I want to play a particular file, WMD and Real Player give me error messages, and the only one which usually would play what the others don't is DivX Player, but not well; for instance the forward feature would not work. If I AM missing a codec, how do I find out which particular codec does the file require. I tried using KDAT but it will not show me the files from that particular folder for some reason. Any other way?