The medium might be reliable, but the floppy disks and drives I used were not. I remember when I had to take homework to the lab, we had it on 2-3 disks because of the reliability issues. Sometimes it was a problem with the reader. sometimes the disk worked after formatting, but a lot of times it was dead. Bad sectors, bad memories ... oh no ... I don't miss the floppy diskSlow, yeah, but it is very reliable with most of the world's backups being on tape. It's predicted that LTO tapes will reach 350TB by 2030, or something the soze.of a 3.5" drive.