I might be able to help Alan Sharkey with his floppy problem, but I'll have to check. It's possible I gave all my 5 1/4s away with my TRS-80 model I a decade ago. Could be all I have left are 8" floppies for my IMSAI 8080.
...Which isn't currently working so I only get limited bragging rights, or I might have mentioned it previously.