On 12/11/2015 04:35 PM, Oliver Lehmann wrote:
  Western Digital Caviar 31600 it is.
 I'm waiting for a 32Port-LA (might take up to a month). When it is
 there I'll continue debugging that issue and see what a MS-DOS does
 different from what I do. 
MS-DOS uses the native BIOS for hard disk accesses, unless you're
running Windows 3.1 or so and use a VxD to drive the ports directly.
But, I think I've actually got one of those 1.GB Caviar drives.  I'm not
sure if it's still operational, but I'll check my drive cabinet.
--Chuck