Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site fortune.UUCP
Path: utzoo!linus!philabs!seismo!hao!hplabs!hpda!fortune!burton
From: burton@fortune.UUCP (Philip Burton)
Newsgroups: net.micro.pc
Subject: Re: Reading/Writing IBMPC compatible diskettes on Victor.
Message-ID: <1936@fortune.UUCP>
Date: Fri, 9-Dec-83 15:36:41 EST
Article-I.D.: fortune.1936
Posted: Fri Dec  9 15:36:41 1983
Date-Received: Sun, 11-Dec-83 02:25:40 EST
References: <14405@sri-arpa.UUCP>
Organization: Fortune Systems, Redwood City, CA
Lines: 15

Unless I'm wrong, the Victor drives use 80 tracks per surface, so each
data track is thinner than on a disk written by an IBM PC, which uses
40 tracks per surface.  If, and if, you could make the Victor drives
run at a constant 300 rpm, then a Victor could read PC disks, but not
write disks that could be read by a PC.

Same for all quad density vs. double density, except Victor had the
clever but unusual idea to vary drive speed to achieve something
known in the disk drive world as "constant bit density."  Nice idea,
but it creates interchange problems.

Phil Burton,
Fortune Systems,
Redwood City, CA
415 595 8444 x526