Why doesn't audio play with my movie on wmp?

Are you getting an error message or anything? Most commonly, WMP doesn't play video properly because you're missing codecs. I personally prefer to watch video with VLC, which is free. I've never had codec issues with it. You can get it here: a href="http://www.videolan.org/vlc/" rel="nofollow"http://www.videolan.org/vlc//a