I wonder if anything with SUBSECTOR in the title that's not readable is some binary format from some sort of application.
If one uses a raw ASCII text dump, there might be some clues.
On the other hand, if it was an image of some sort or a binary dump from an application, you might well not have any text strings to even identify it with.
I may have a Win95 machine still around, an NT 4 machine around, and some XP machines around. Not sure if all will boot or not, but if some do, maybe some of the viewers and such from the old days might allow me to decode some of the stuff. Failing that, I probably have some tools for inspecting binaries there. Over the next weeks and months, I need to triage that pile of old boxen and decide which, if any, are worth keeping around.
Now, with any of those, if I get a hardware failure, that's probably end of the line, esp in the drive.
I do have plans to capture all my data via TCP/IP network from them and that should be easy because drive sizes were a at least 3 orders of magnitude (more likely 4 or 5) larger than what I have now.
Anyway, if I get any of the really old boxes up, I'll see if I can help with individual files.
It strikes me that, where possible, if we can open these files, we should try to crank out some exports to more modern formats if they can be generated.
Tom B