ok when i had old cfw (i don't remember which.. i think it was 2.71 oe-a or something), i could switch iso's by pressing both L and R button or something. how can i switch iso's in 3.71 m33-3? because i play dj max 2 and it has 'link disk' mode and asks me to insert dj max 1 umd. but how can i switch iso's in-game? i have both dj max 1 and 2 iso's in my memory stick.