Third Party 4D35 Disks (I'm being bit)

[John D. Woolverton]

    I had a nice, quiet, third party hitachi 3 1/2 drive in
my temporary 4d25, and when they upgraded to the 4d35, it
stopped working.  I am discussing it with my supplier, but I
am curious what great design changes they made that broke a
very common disk drive (used in our sparcs too).
    Someone mentioned that the SCSI controllers changed from
SCSI1 to SCSI2.  Isn't it backwards compatible.  Will other
SCSI devices suddenly break?

    John D. Woolverton, Video Bits
    woolstar at cobalt.caltech.edu