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From: wilker@gauss.math.purdue.edu (Clarence Wilkerson)
Newsgroups: comp.os.cpm
Subject: Re: CP/M disk formats (was Re: CPM to DOS exchanger)
Message-ID: <13075@mentor.cc.purdue.edu>
Date: 1 Jun 91 14:02:00 GMT
References: <1991May22.042049.8842@trl.oz.au> <Z8cR31w164w@ruth.UUCP> <822@spam.ua.oz>
Sender: news@mentor.cc.purdue.edu
Reply-To: wilker@gauss.math.purdue.edu.UUCP (Clarence Wilkerson)
Organization: Purdue University, West Lafayette
Lines: 23

If the 3.5" disk is physically compatible with ibm pc type
drives, then you can hack a set of parameter tables to match
them and use 22disk, a shareware program that runs on a PC.
My guess would be that the disks are single sided, double
density with either 5 1k sectors per track or 10 512btye
sectors per track, with first 2 tracks reserved for system.
My second guess would be double sided SINGLE DENSITY, which
the usual pc controller will not read. The 22disk instructions
do have a hardware patch to read single density, however.

If this is not urgent, and you don't have the experience to
use 22disk, you can send me a sample disk with a few files
on it (Non-critical stuff only, please) to me at
Prof. Clarence Wilkerson
Dept. Math.
Purdue University
West Lafayette, INdiana 47907

and I can probably figure it out.

One gotcha is if the drive is actually 3" and not 3.5".

Clarence Wilkerson