I have the same prob. as of today.. I'm stuck in the wrong region on my last change aswell.. and the awfull -70000 error in DVD Player. I don't have OS 9 installed so cant check if it works there. Anyone figured out a workaround? No firmware for my drive either..
Just got the same error, running Mac OS X 10.2.6 on a Dual G4 MMD.
Last region change left. Very annoying. I've tried to reset prefs. but no luck so far. Did you figure it out?
Mats