I have received .wmv files from a couple of talented writers here in the forum. I've run into a problem with those files. Would anyone know why I am having problems running these video files on Windows Media player 10? I've selected all the ext's. in the options including .wmv. Yet it keeps telling me that the file may have been compressed differently and that I may need another codex. Anyone know which codex it's talking about. I'm guessing that the files were made using Haptek. If anyone could give me a nudge in the right direction I'd really appreciate it.