Date   : Tue, 31 Jul 2001 05:18:08 -0700 (PDT)
From   : Thomas Harte <t.harte@...>
Subject: Re: BBC Model B +3.5" FDD + 8271 + DFS1.21

>  The BBC has an 8271 interface and DFS 1.21 

>  I have been using my Acorn A3010 to format the disc - using the ADFS 640K
>  (L) format which I believe is compatible with the BBC disc format.

The problem is that the ADFS and DFS formats are completely different. One
cannot read the other. You need a DFS formatter, such as that offered at the
bottom of http://www.voyager.co.nz/~mikef/bbc.htm . I don't know the
specifics of the 8271, but I assume 1770 DFS's such as that effectively is
write compatible discs, or what was the point of inventing one in the first
place?

-Thomas





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