Amigas (and Macs) tended to have "smart" floppy drives. They autodetect inserted floppies much like Windows autodetect usb flash devices. I've lost a few floppies from age or just plain going bad. But most of my Amiga floppies have outlasted the computers they were used for. In fact, I have a number of 720k (880k on the Amiga) floppy disks from the late 80's still in use today.