[quote name='62t']try cleaning the drive, and if that doesnt work, buy a drive on ebay. Putting one is about as hard as replacing a PC DVD drive.[/QUOTE]
Yeah I used a lens cleaner and didnt have any success, I though there might have been a mechanical fix for the drive.
Anyone know how to do it for a non modded box? xbox-scene has info for adding a PC drive, but your box must be modded. At least here's a link for pics on how to remove your drive if you get a new one from ebay: