On 26 Jun 2009 at 13:29, Keith wrote:
   See if you can
access the drive (at least on a physical sector
 basis) under MS-DOS/INT 13 services. 
 I barely know what you are talking about here. :)  I can just google
 it, or if you have a good ref, I'll take that too. :) 
 
Well, if none of this helps, drop me an off-list message and I'll
email you a DOS program that probes IDE drives directly and lets you
know what's what.
Some of the early IDE drives were non-standard  in their responses to
the IDENTIFY command.  In particular, I recall that early Maxtor
models swapped the order of the words in the field used to report
total number of sectors, necessitating a kludge in some drivers (e.g.
If C*H*S ~= total sectors, try swapping the words).  There were many
other peculiarities...
--Chuck