Yeah, that's one things that's so painstaking about the software process. There are tons of non-oem disks that have their contents scribbled on them, many are marked wrong, and some aren't marked at all.
So far I've found a scribbled copy of a 7.5 tools disk and Disk Copy 6.3.3 (both usefull)
I also have plenty of comlete sets in which half the disks are unreadable.