I do not know,. I have not tried to watch a dvd on my computer in quite awhile, or used a dvd on my computer in quite a while. to me it would seem like it would be my software, since it is able to read cd disks, so with my restore feature Ive erased all my old restores. so if my cd/dvd drive can break on the dvd part of it only is my next question. I did uninstall my roxio power dvd program and put it back in but not do anything. maybe I should try and locate a driver for it since it is not "driving" on the dvd part. my dvd player for movies broke and now I go to use it on computer an it broke too. must be something though???