I don't get why is there so much different types of hacks listed for the 4.1U/4.1E. I've read the functions of each hack and they literally do the exact same thing; ex. Force Disc Region 1 and Force Disc Region 2. What's worst is that some of the hacks don't even work such as the Region Free hacks(which includes all the other region free hacks that has the exact same function)when I attempt to insert the NTSC-J game.