Argh! I looked at the package for like 12 msec, hefted it for 29 msec to see what kind of noise it made / how the internal mass felt, and _guessed_, based on 17 nsec of thinking about it, that 'I suspect ... 8" floppies'. Had I stopped to think, I probably would have come to the same conclusion: for original PC; original PC only had 5.25 inch floppies (which I had to look up, I couldn't remember off the top of my head - my first was a KayPro AT) --> probably 5.25" media inside - but I didn't, I wasn't that interested, I just wanted to find a good home for it! (And no doubt the seller made the same mistake, which was why it was in with a bunch of 8" floppies...) Noel