From: Dennis Boone <drb at msu.edu>
Dear all,
You may be familiar with the phenomenon of a project list years long,
and with the way it often gets ordered: "project #345 sounds interesting
today."
Well, this weekend, I finally managed to combine motivation, interest
and parts, and assemble a working 5.25" + catweasel floppy imaging
setup. This moved up the priority list because the machine I usually
use to image floppies can't do SD, and these old Osborne 1 floppies have
been on my desk staring at me since someone on IRC asked about Oz-ware
weeks ago...
I'm want to have backups of my piles of floppies, as well as to be at
least a somewhat responsible preserver (in the unlikely event I actually
managed to hang onto something not already widely saved), and to be able
to share bits and pieces as seems appropriate. I'd like to be able to
both re-create floppies as well as use the data in emulation. I
understand the latter is going to require format conversions in a lot of
cases, and that the necessary converters may or may not exist yet. I've
used both ImageDisk and cw2dmk in the past.
What I'm wondering is this: what about the DMK or IMD formats is going
to cause me problems later? I prefer data images to flux images because
the latter are clearly not directly usable in any emulator. I
understand how a flux image enables more accurate re-creation of a real
floppy, but the scope and implications of that are a bit fuzzy. I'd
like to have some feel for how many things I'm going to be unable to
reproduce later, how they'll go wrong, why images won't be useful to
others, etc.
Obviously no single solution is suitable for all applications, my
mileage will vary, &c. Both of the above-mentioned are excellent pieces
of work with many valid applications. I suppose I'm basically looking
for war stories which illustrate particular technical issues here -- the
criteria for making the choices, not the mythical "best answers".
I've spent some time googling through the cctalk archives without
finding the kinds of discussion I was hoping for, but I'll cheerfully
accept hints about how to approach the problem that way.
De
Hi
I don't know what format the Osborne 1 used. Once you know that,
a liitle searching on the web will find how the flux transitions translate
to header and data. As long as there were no errors, you should then
be able to convert them to raw images.
Dwight
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