Defining Disk Image Dump Standard

From: Pete Turnbull <>
Date: Thu Jun 1 17:44:43 2000

On Jun 1, 16:34, John Wilson wrote:
> On Thu, Jun 01, 2000 at 11:12:11AM -0700, Sellam Ismail wrote:
> >Insert "Disk Side (Head)" (1 byte)
> Hard or soft head number? I feel sure I ran into a format (Commodore?)
> the sector headers had the opposite head numbers to the side on which
> were actually recorded.

This is also true on some Acorn disks, and I'm sure I've run across it
elsewhere, where the "head" value encoded in each sector header is always
"0", because the second side is treated as tracks 80-159 instead of each
cylinder being two tracks distinguished by head number.

Pete						Peter Turnbull
						Dept. of Computer Science
						University of York
Received on Thu Jun 01 2000 - 17:44:43 BST

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