On Fri, 25 Jun 1999, Pete Turnbull wrote:
> > Actually, it can run any version of DOS (3.2 or 3.3) but for 3.2 you need
> > the 3.2 controller.
>
> Um, Sellam, are you sure you've not got 3.2/3.3 compatibility round the
> wrong way? The P5A and P6A PROMs that came on Disk ][ cards sold with DOS
> 3.3 (16-sector) can also handle the encoding used for DOS 3.2 (13-sector),
> but P5 and P6 PROMs supplied with Disk ][ cards can't handle the encoding
> used by DOS 3.3. There are a very few exceptions related to copy protected
> disks, of course, which is why some of us had switchable cards.
Oh yes, you are quite correct. I forgot about that. I remember now that
to boot 13-sector disks on a 16-sector controller required the 13-sector
pre-boot disk that Apple supplied with DOS 3.3.
Sellam Alternate e-mail: dastar_at_siconic.com
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Received on Sat Jun 26 1999 - 18:20:13 BST