On Monday, January 12, 2015 at 9:56:08 PM UTC-8, wrote:
Got one of these in and the customer seems hot to trot.

it must have worked because the burner drawer is not closing, and the eject button is out of the read drive. Figgure we will just change both drives and be done with it.

If this is intended to copy DVD videos, there's a problem. All DVD mechanisms read all tracks,
but recording mechanisms never RECORD the DVD-video leadin/region code tracks. For
that, you need a special mechanism, and/or special blank disks. Without some special
hardware, a DVD duplicator only copies data DVDs.

I'm not certain that a read mechanism reports the video leadin information, it might
sequester/digest that internally.

You might just be better off putting a new belt into the 'not closing' drawer mechanism.