I had the same problem, where my DVD drive wouldn't play anything at all. I swapped drives and movies would play but not games. So I swapped the Printed Circuit board from the old drive to the new and it worked just as new and no need to flash. Just make sure your replacement DVD Drive is the same model as your old. There's tons of you tutorials on how to swap PCB on youtube. Keep in mind that some models involve soldering but thats easy as well. NOTE: My Xbox in the old FAT one NOT the slim. No sure if this would work on a slim.