Greetings:
I am not sure you can hook the superdrive to the Miggie. It was neat because of course the apple drives are motorized and eject the disk from software :-)
IIRC, the apple drive was also 880K in Mac format, but that had to do with the software, not the physical drive... it may have been 720K/1.44 MB just like the PC counterpart. What made it "super" was the high density.
I would love to find that you can use those drives with Miggies because I know where there are a bunch of them!