Just as the title says. Suddenly some of my games started reading as dvds, then every game read as a dvd. I replaced the drive and still same problem. What am i overlooking? Anyone else had this same problem?
You'll need to extract an original bin file of your firmware from the original drive. Each motherboard is tied the it's DVD with a DVD key and you can't just swap drives without that key. It's not like the original Xbox where you can simply swap drives. You need to get the from in original firmware and inject it into the firmware of the new drive.
If both are Samsung drives then you can swap the boards in the drives. For Hitachis you can do that too, but they have to be the same firmware model.