Last year I also did some attic cleaning and found boxes of all my disks and some CD's from before I moved away to college. I found floppy disks with files as old as about 1993, including one with some risque' saved pictures from p2p IRC file transfers, some chat logs, and whole program folders I had saved (because at that time 'backing up' things to me meant literally copying the program files folder from one computer to another).
Very surprisingly, every file I tried from every floppy loaded perfectly. Nothing says blast from the computing past like finding 16-color palette dithered GIFs of porn you hid as a 15 year old by saving them with obscured file extensions on boring beige floppy disks labeled 'WIN32 DLLs'.