Comment by WalterBright

I wrote a C program a few years ago to make an image copy of DOS floppy disks. This was so I could preserve bootable floppies. (It doesn't deal with copy protected disks.)

It's a DOS program itself because it uses DOS to access the FAT tables. So it needs to run on Windows XP or earlier, or use a DOS box.

I can put it up on github if anyone wants it.