Reading NorthStar Horizon hard sector disks on PC

[Chuck Guzis]

On 31 Jul 2007 at 15:44, Allison wrote:

>> Error!  Advanatge is the same format as the MDS [Aka Horizon) and 
does
> both SD and DD formats.  Least mine does.

As I said, it's been a very long time.  I recall perhaps about 10 
years ago, getting some N* diskettes in that I could have sworn the 
Matchpoint supported and discovering to my surprise that it didn't.  
I rarely get out the PC-XT with that card now, as I've got better 
facilities to do the job, but I can double-check my Matchpoint 
documentation to see what they said exactly.

The Matchpoint card would be simple to reverse-engineer; not nearly 
as involved as the Central Point DOB.  I'm not sure if the MP drivers 
work on anything much faster than a PC-AT, however.  To my knowledge, 
most were sold to handle Apple diskettes, rather than N* ones.  The 
USPS purchased a bunch of them at one time.  The card was 
discontinued officially sometime around 1989, but you could get one 
from MS as late as 1993 if you knew to ask for the person who was 
handling USPS requests.

Cheers,
Chuck