How many do you need? I've got about 15 that aren't doing anything important. I bought two of the SQ drives when they first came out, sank a bundle into the cartridges, and then they flaked out on me. One drive had some kind of head crash and started eating cartridges, and the other one just ceased to function. Frankly, I was not impressed. Perhaps their new products are better. Do you know of any way to re-format a SQ disk that has been bulk-erased? I had this bright idea several years ago that maybe just completely clearing the disks by bulk-erasing would be a good thing. I'm thinking now that I obliterated some factory tracks that the drive can't reproduce. Ideas?