I just hate hate hated them! they were such a pain :(
I was unfortunate enough to use them in my first year at the university... We would save all our projects on them, write our ID numbers (0037164 and 0037144 :)) on those lines, and carry like a dozen because they're only 1.44 MB, and then when we put them inside the slot they'd make that sound, ugh!
The worst thing was when you'd spent all of last night saving files on them and the next day you get a message that says the disk is not formatted - format now? No do not format now thank you very much!!!
I don't know what reminded me of them, I seriously have no idea.