Managed to install v200b3 on one disk, and looks like its installing just fine on the second disk now.

Maybe it is due to the fact I dug out an old ( slow ) laptop with Win98 and ran the Player Upgrade from that ( rather than fast Win2k laptop ).

Maybe its just luck ( although I must have tried the install near 50 times without any joy )

Maybe its because I just screwed the HD's into the cradle ( although they were resting insulated from the Empeg chasis before this ).