Frankly Dom don't see much there EXCEPT no DVD Player software. That is why you cannot play DVD's, you need to have player software installed in order to be able to play them. Now there IS a listing for the Sonic Encoders, which "might" be what you would need to reinstall, I cannot say for certain. Check the disks that came with the computer. If you used to be able to play DVD's and can't anymore then that is the reason, you don't have the software installed.