Having considered trying Kunga's tin snips hack to keep my old DVD RAM AND my new 105 Superdrive in the G4, and then having considered putting the DVD RAM drive in a new external case, I am wondering: What will the DVD RAM do that the 105 won't? There's a slight difference in capacity, but otherwise, is it just a matter of using already bought or burned DVD-RAM disks (which used to be very expensive), or am I missing something? Is there some functionality that the 105 doesn't have? Tom