On 29 Mar 98 at 19:58, Kevin Walker wrote:

> I did a low level format [which I have performed many times before on
> other Drives] .

  Low-level formatting of IDE/EIDE drives is generally not
recommended by manufacturers.  A few have utilities for this posted
on their web pages; NONE endorse using the well-known ROM routine
accessible from DEBUG.

> When I try to access the drive after first booting with a Dos 6.22
> SYS Disk to drive A:  I then try to access C:\ Message says Invalid
> Media Type

  This sounds, to me, like the drive is probably permanently damaged.
Probably cheaper to replace than to try to repair.

David G