Intel DD format differences

[Steve Thatcher]

I referred to the 1793 technical spec that outlined what the 3740 and system 34 formats are. Those manuals are also out on bitsavers under Western Digital. I saw no reference to PLO sync bytes or the special gap bytes in the SD format.


-----Original Message-----
From: Eric Smith <eric at brouhaha.com>
Sent: Feb 22, 2005 10:29 AM
To: Steve Thatcher <melamy at earthlink.net>, 
	"General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Re: Intel DD format differences

Steve Thatcher writes about Intel double density (M2FM) disk format:
> Eric, the gap and PLO sync bytes are in the DD system 34 format. They are
> not in the 3740 format that I was talking about.

What's documented in the Intel manuals doesn't match the docs I have
for either 3740 or System 34 DD format.  Maybe I'm missing something.

Eric