Is the drive being seen by the PAR? If so I belive you can format the drive from the PAR through the Preferences panel.
I have tried several old ide drives, reset the jumpers until one worked. Got frustrated with the process and made sure that the next drives were at least the types listed in the PAR compatibility notes from the manual. Was hit and miss but I finally have two 4.3 gig units.
I tried looking for the DPS information base, but it looks like
http://www.leitch.com has taken down the old tech pages.
Noticed you have DPS vectorscope listed in your equipment line up. Any chance of getting a decent copy of the manual?