I have looked everywhere for a fix or a forum for this problem, but to date I have had no success. My mat*!@:a (Panasonic) uj-831d dvd r-w drive has stopped recognising dvd’s. It will play audio cd, and run, and install games But any dvd it does nothing, it doesn’t show any files in explorer. Has anybody come across this or does any body know where to get a firm ware update?