On Jan 7, 2017, at 1:48 PM, Pontus Pihlgren <pontus
at Update.UU.SE> wrote:
 ...I'm curious. I have an RM80 (which I intend to use as is). But would the
 RA80 personality board be possible to transplant into an RM80 to read or
 write its content? 
I doubt it.  The RM80 uses a track format with a spare sector per track, while the RA80
using MSCP bad block replacement to deal with bad sectors.
        paul