Apparently it won't work with most US blu-ray players. Anything Sony, especially PS3, forget it. There's some others that aren't compatible either. It isn't region locked per se, it's that it's running at 50Hz signal, which is the standard for Europe, and not many US players can convert the 50Hz signal to the normal US 60Hz signal that players and TVs can read. Though I've heard dirt cheap Insignia will play it so yeah, just takes a bit of research. I ordered it the other day before looking into it. Hopefully my LG player will do it. If not...i've got a fancy coaster until I buy a new player.