Have you got the correct codec installed. Download K-Lite Codec Pack which also includes Media Player Classic which plays just about anything and the codecs allow other media players to work as well. I find VLC a bit user unfriendly for most people as it just has too many options that by the time you have set them up the film is almost over. It is better however at handling subtitles and different languages.
This thread is now locked and can not be replied to.