just look for a cheap A500 cdrom drive. I've seen several on ebay over the last few months for less then $50. You can burn all your amiga ADF files and then pop the cd into the A500 cd rom and your set. I use this trick on my A3000. Since its so hard to find 720kb disks these days my HD formated ones dont seem to keep the data long and I dont want to loose my amiga stuff.