Hmm.. good question, I can never remember exactly how the devices have been 'tweaked'.

IIRC, Mk2 players have /dev/hdb set up to point to /dev/hdc so that player software can treat Mk2s as Mk1s when doing low level stuff.

I suspect that you might be able to use:

dd if=/dev/hdb3 of=/dev/hda3


on both Mk1 and Mk2 players with the same effect, which would make FAQ entries simple. But that should be tested on a Mk2 player first.