I've posted this on the apple discussions, but thought I would also try here to see if you guys have had any luck. Basically, I'm finding that when I backup data onto DVD+R disks on my PM G5 1.8 (Dual), they burn fine but they won't mount . It's odd because they mount on my 1.67 PB, no problems. I've just tried cleaning the drive, but still no luck. It looks like this might just be a common hardware problem - thankfully I still have applecare... But I'd much rather keep the PM here with me! And the drive is a HL-DT-ST DVD-RW GWA-4082B (I think it's hitachi). Any suggestions???