I tried to undub Rondo of Sword using DSLazy, the game is 64mb and after I undub it, it only has 47mb left. What I did was I replace arm7, arm9, banner, header, y7, and y9 .bin files from English version to Japanese verion and then pack the Japanese version back again (and it turns out only has 47mb). When I run the game using R4, the screen turns blackout. Did I do something wrong?