I think their point was to say that by play Japanese games, that yes, any region disc will work, but not any better than whatever region you are already using. All games from all regions get the same results. And there's still the chance that they game may not do anything, and that doesn't necessarily mean it's not working because it's Japanese, it merely means that that particular game just doesn't work now. Some Japanese games show something, some don't. The International version of Final Fantasy X (bositman will be glad that I mentioned THAT particular game
) does show about as much as the US version of the game. Whereas, my copies of Enthusia Professional racing doesn't show anything for either the US of Japanese versions. It's all still sketchy, no matter what country code it is. All you can really do is give it a shot.