I live in the US.
I purchased the OptiBUK dvd from HMV.com
I thought (because they advertised it) it was for region 1 (2-6 actually).
I planned on getting a region free DVD player, but I instead found http://www.regionfreedvd.net/ which gives directions on how to change the region of your dvd player. I did not have to buy a new dvd player and I can now view the region 2-6 OptiBUK dvd on my original region 1 DVD player.
Go to www.regionfreedvd.net and click on DVD players and then scroll down to find your DVD PLAYER.