Of course I live in the US:
~# regionset /dev/sr0
regionset version 0.1 -- reads/sets region code on DVD drives
Current Region Code settings:
RPC Phase: II
type: NONE
vendor resets available: 4
user controlled changes resets available: 5
drive plays discs from region(s):, mask=0xFF
Would you like to change the region setting of your drive? [y/n]:y
Enter the new region number for your drive [1..8]:1
New mask: 0xFFFFFFFE, correct? [y/n]:y
Region code set successfully!