The AC power source would be an AC battery? I barely understand this, but I assume that DC would send only one polarity all the way through, just like my HD magnet? So I would need to make an electromagnet out of an AC battery, then wave that over the disk, and that would be that? In my opinion, going to buy 720k floppies would be more time consuming and troublesome, really. The only reason I need floppies is because I can't seem to get my zip disks to be bootable, and the 40MB hard drive, well, is old, and not trustable. A few bootable floppies to be there in case of emergency is kind of needed.