Seriously, here in Europe books are treated with a lot of care because books were and are relatively expensive, unlike mangas in Japan which were sold like chip bags.
Maybe a lot of them have a folded page or such, but the content it's readable. Try that with IDE disks from a Pentium II.
Ok, i folded the disk and after many hour of testing i have to say that your are right, it's not working anymore, however for the sake of correctness it was a Pentium4 era harddisk.