Not an Xbox, but I got a 27 inch TV/VCR/DVD combo from my sister, and it was pretty dirty. The DVD drive did not work, wouldn't read any discs, but worked months earlier. I took it apart, blew all the dust out with canned air, and cleaned off the lense/eye and put it back together. Has worked fine ever since. If there is nothing mechanically wrong with the DVD drive, in terms of eject, spin, etc., just try cleaning it out yourself. Usually works.