To really know what DVD drive you have, remove from system and look at the sticker/decal and then search for the right driver. If it still fails, then yeah get a new one. DVD and CD drives do fail more often that not and rather than trying to find or test away, a new drive saves time and cost shouldn't be that high. You can try reseating the DVD connection before pitching it.
Just wondering if my DVD drive has went to the big junkyard in the sky. It doesn't recognize that there is a disk in the drive. I have tried to get an updated driver but can't locate the right one. It is a Samsung SD616E. The PC is a Compaq SR1120NX. I checked the compaq site and found 2 drivers that I thought were right, but when I tried to install them I get a message that they are not compatible. Is there such a thing as a generic DVD driver?