"r. 'bear' stricklin" <red(a)bears.org> wrote:
I wonder if it's specifically the 400k disks that
there is a problem
with? You wrote that your IIci worked fine with 400k disks, which is still
more than I had thought, but I wonder if a Quadra would handle a 400k
disk. My Mac collection jumps from a IIsi to a PM8500, with nothing in
between, so I can't try it myself.
AFAIK, all Macs that can deal with 800K can deal with 400K, at least
as far as the physical format goes.
Recent versions of system software have dropped support for the MFS file
system. Normally 400K disks had MFS and 800K had HFS, although it was
possible to force other combinations.