By the end of the floppy disk era, it was very rare to find a 400 or 800k disk that was still working, and Microsoft really didn't make much use of the DMF disks, they were replaced by CDs very quickly.

I still have a pair of USB floppy drives hanging around with the hopes of getting some more inexpensive ones at a flea market some day to make a USB based RAID-floppy array. I bet it will sound amazing.