use the padded 1.9s from here, use imgburn to burn @ 4x
If that is also giving you the same error, then it is because of a few possibilities.
1) the connections/wiring are probably not good, and should be redone
2) the wiikey may not be authentic
3) the laser could be going on you
If you're local to us feel free to come by and I can check it out for you.