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From: delaney@wnre.aecl.CDN (Grant Delaney)
Newsgroups: comp.sys.apple
Subject: Re: PC transporter
Message-ID: <603*delaney@wnre.aecl.cdn>
Date: Thu, 22-Oct-87 01:17:53 EDT
Article-I.D.: wnre.603*delaney
Posted: Thu Oct 22 01:17:53 1987
Date-Received: Sat, 24-Oct-87 13:43:05 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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According to CALL A.P.P.L.E. which just arrived today. 

In fact AE has announced a peripheral card that will allow 3.5" disks, either
Apple or IBM compatable to be used interchangeably on either an Apple 3.5 or
an IBM compatable 3.5" drive  (the only caveat is that the disk should be 
formatted on an IBM drive, because it (the IBM) uses the disk index holes.

This is how the old 8 inchers used to work and was often refered to as hard
sectored disks as most came preformatted and all tracks start from the same 
point.