How is the Combo Drive different than the SuperDrive?
Apple’s Combo drive reads and writes (burns) CDs. This means you can burn images, music, text, graphics, etc. to a CD and read them as well. Combo drives only play (read) DVDs. So, if you want to watch The Matrix DVD on your combo drive, break out the popcorn. The Apple SuperDrive does every thing the Combo drive does, but it also burns (writes) fully interactive DVDs onto DVD discs. If you’re an iMovie or DVD Studio user and want to create interactive DVDs, or want to burn files or back up to the larger capacity of a DVD disc, the SuperDrive is your only option.