I just got a 1.33 ghz 12.1" PB. I was looking in the system profiler and the optical drive is listed as "Mat****a UJ-825" and says CD-RW/DVD-R . I ordered a combo drive, but according to that, it is a dvd-r (super) drive. Does anyone know how I can confirm this? I guess I could buy a dvd-r and try to burn it...