Ok, put a slot loading CW-8122 Matushita drive in my slot loading imac. Yey! So ive been playing around with it for a few days and, as i expected, it wouldnt work with my korean region 3 dvds. So ive been googling and found 4 different mac firmware updates for the drive. When i try to use them, it just says something along the lines of "Your computer does not need this update." Any help guys??