Anywho dont change the with a program like WIU, turn of the updater and region with starfall or any other prog, burn the game on a normal DVD-R ( I use platinum discs) burn them on anyspeed ( yes 16X works fine) when the game is burned go to the backup loader and force it to load NTSC, and turn the Hooktype to VI. this should do it, atleast on my wii it works fine. I use 0.3 Gamma, first version
If you have the second version, hold down the 1 button to go to your config. The last thing you could try is another disc burn program. I use Nero 8.