Especially for long term archiving, I think that
things like simple, open
formats are more important than making sure that everyone's grandma can
figure out how to use the archive... ie, assuming that the person has a
grasp of being able to learn new things, and some idea of logic are IMO
reasonable assumptions.
You alos need to consider what is the most likely sort of person to want
to access this archive. It's an archive of boot disks, PROMs, etc for
what are _now_ somewhat obscure computers, and which will presumably be
even more obscure in the future. The sort of person to need that sort of
data is likely to have quite a bit of computer knowledge already, and is
not going to have problesm with tracking down a copy of gnu tar or
similar....
-tony