Path: utzoo!utgpu!watmath!iuvax!rutgers!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: How to write synch bytes on a 3.5"
Message-ID: <32218@apple.Apple.COM>
Date: 2 Jun 89 22:41:09 GMT
References: <8906021716.AA25779@crash.cts.com>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 26

In article <8906021716.AA25779@crash.cts.com> pnet01!pro-nsfmat!pro-lep!orcus@nosc.mil writes:
>Does anyone here know how you go about writing and reading synchronized
>tracks from a 3.5" drive?
>
>-Brian

I don't have the answer, but I know that (if the terms mean the same thing in
the 3.5 world that they do in the 5.25 world) self-sync bytes and synchronized
tracks are two different things.

Self-sync bytes are special nibbles that are used when reading to get
synchronized with the nibbles on disk--otherwise you might find yourself
reading part of one nibble and part of another nibble & thinking they
were one nibble.

Synchronized tracks means that each track starts at a particular place
compared to the track next to it.

 --Dave Lyons, Apple Computer, Inc.          |   DAL Systems
   AppleLink--Apple Edition: DAVE.LYONS      |   P.O. Box 875
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