download ANYDVD v6.3.1.5. to unlock you DVD region lock. that one worked for myself as i had some dvd's i bough from the us and wouldn't bly in my australian dvd player. and from memory i think DVD region killer will id what region your DVD drive is lock to. (i think)
if you want to copy your orignal disc so the copy will run on any region and anydvd up and burn it and magic its now dvdregion free