Greetings...I purchased a 24" Aluminum iMac in November. I was double checking the SuperDrive to see that it can burn a Dual Layer DVD+r (via the "About this Mac" Burner section)...and I see that it cannot burn a DL. My July 2007 MacBook Pro has a superdrive that can burn a DL DVD. So I wanted to check with other Aluminum iMac owners...Does your 24: iMac Aluminum have a superdrive that can burn a DL? Could I need some sort of firmware update? or is the DL-capable Superdrive only available on the 24" with the 2.6 ghz processor? I was thinking of calling Apple to complain. Comments...thoughts appreciated.