[HECnet] Future problems?

[John Wilson]

From: <Paul_Koning at Dell.com>
Date: Fri, 15 Jul 2016 18:17:11 +0000
>>I didn't even know that there was a DOS-11 disk format, but thinking about
>>it, it would seem obvious there should be one.
>
>Yes, there is, different from everything else as far as I know.  I think
>the DECtape format is faintly related.  Some DOS manuals may give some
>clues, but I've never looked into it or had any exposure to DOS disk file
>system internals.

Yes it's in the manuals, and the (commented) source code to PUTR.COM
has some explanation too.  I believe the DECtape and disk formats are
the same, except that the MFD1 is located at block 1 on disks and
block 64. (^O100) on DECtapes.

The DOS/BATCH disk format is also used by XXDP before V2.  XXDP V2 has
its own similar (but different) format.

John Wilson
D Bit