If you want to use Apple's burning software (I think it's iDVD), you need to patch some files. I guess [cdfsearch=patchburn]patchburn[/cdfsearch] was the keyword to search for.
Toast and other burning apps should recognize the burner without any patches, but when I visited a friend recently, some things don't seem to be very mature. We often had to turn his enclosure off and back on and his DVD player didn't want to play several DVDs that didn't cause any problems on my PC and standalone player.