[bturz]

I have several burnt dvd's that i have put on my hard drive that have played well with windows media player. These movies will not play when i use xbmc. when i choose one of these movies it gives two options: video and audio. when i choose any of my other movies that i have taken from torrent sites i get the option to play the movie when i choose it and there is no problem. iam really enjoying xbmc, not sure why it wont play my burnt dvd to hard drive.
what can i do to play these movies>