thanks for your replies, im not sure what happened, 1 dvd wouldn't work i tried a different 1 and it played, then tried the other dvd again and it worked fine. my computer is 8 years old, so im not surprised it acts weird sometimes. thanks again.
DVD's as CD use different file formats like a PC can use Fat 32 or NTFS etc no all drives play all discs, some CD drives will not play MP3 because the Player is not made to play them. Your drive may be having one of these problems. It also like you can use + discs or - discs some only use one type other use both. It called Technology, that means nothing works that should