No, it works. I asked to bd-mod and he answers me this : In fact, you need to modify this settings, as you will do for a bluray, just once and that also change the code zone for DVD. I believe it change the code zone to 0 because when I set back the language to french, it still works. Unfortunatly, I just have Zone 0, 1 and 2 DVD so it's just a guess. I will need zone 3 DVD to be sure.