15 Jan
2016
15 Jan
'16
7:39 a.m.
do you have a working 8" drive? You can attach to a PC from the 386
through to Pentium III as a "HD 5 1/4" drive. That's what I do. You need
the DBIT 50/34 adapter and image an disk program. You can usually for CP/M
disks just use the motherboard's built-in disk drive controller, but I also
have a Catweasel if I need it for more exotic formats. CP/M disks are very
readable, any format I have ever encountered on SS disks has been no
problem, assuming the disk itself is ok.
Here is a thread from my web site that describes the process, as I
accomplished it. There is more than one way to skin this cat, there is
also a link within the thread with a downloadable how-to guide from VCF
East 9.
http://vintagecomputer.net/browse_thread.cfm?id=561
Bill
On Fri, Jan 15, 2016 at 10:32 AM, Robo58 <robo58 at optonline.net> wrote:
Hi Fred,
Thanks for the reply. The 8" SD diskettes are standard IBM format (I
believe 3740 physical format) 26 sectors. I believe the 8" DD follows the
same 3740 physical format but has 1024 byte sectors and that they could
vary
as to either 8 or 9 sectors/track.
Regarding the 5.25" HD diskettes. I believe they are duplicates of the
8"DD
just using the smaller media.
The hardware is custom so there is no unique base of users or other
software
to leverage. There are two different platforms, both Z80 one platform uses
the Western Digital 1771 floppy controller, the second platform was newer
at
the time and is Z80 with WD 1791 floppy controller.
Thanks Robo
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Fred
Cisin
Sent: Friday, January 15, 2016 10:10 AM
To: General Discussion: On-Topic and Off-Topic Posts <
cctalk at classiccmp.org>
Subject: Re: Archiving CP/M 2.2 Source Code Programs to a PC (Fat or NTFS
media)
On Fri, 15 Jan 2016, Robo58 wrote:
--
-Bill-
Hi Folks,
I have many diskettes worth of CP/M 2.2 assembler source code and
programs that I'd like to archive in the PC environment. I'm worried
that my media is degrading and I want to move it before it's too late.
The media is mostly 8" SD or DD, there are also some 5.25" HD diskettes
too.
Are the "8" SD" standard 8" SSSD?
What format are the 8" DD?
What format are the 5.25" HD? Are you SURE that they are HD?
I have the original hardware and can view the
media and run the programs.
What make and model? There are approximately 2500 mutually incompatible
CP/M disk formats.
I'm looking for suggestions on how to move it
to the PC environment.