Date   : Mon, 29 Jun 2009 00:16:02 +0100
From   : jasonwatton@... (Jason Joe Watton (Hotmail))
Subject: Master 512 boot problem

> Yes, I have formatted the floppy as an ADFS L disc, I used OmniFlop to do
> that and then put the ADL disc image from BeebEm into that disc. The disc 
> is
> a split format, with a boot file that you can run from the * prompt that
> gets you as far as I got.

> Is there a nuance between 3.5" and 5.25" ADFS L formats ?

Yes.

There are two ADFS L formats defined - look for:

5.25" Acorn ADFS L
3.5" Acorn ADFS L

(easier to see if you select 'only Acorn' formats using the latest version).

The 5.25" format came from Mark Ferns 03/02/05, Jon Ripley, and Tim Felgate 
28/03/05.
The 3.5" format came from Chris Richardson 09/02/05.

The difference? The 3.5" format reported had head IDs {0, 1}; all 5.25" 
formats had head IDs {0, 0}. Both are available for a 3.5" 1.44MB drive, 
with the names merely reflecting the reports.

Jason.