It is possible that once you go through all the steps to mod your Wii - You might encounter a problem with Raw Dump 2.0. It's called an "Unhandled exception arithmetric error". The suggested fixes include - Switching your IDE cable to Pio mode only, running raw dump in safe mode, attempting to run older versions of raw dump, using .net framework 3.0, administering a system restore/repair, or cleaning your disk. It is possible however that none of these will fix the problem. There are no known fixes for this error. Before buying all the materials and going through the hassle of modding your Wii, please know the possibility that your efforts may not be rewarded. I myself was able to back up 8 games before recieving this error. I have been unable to back up a game since the error. Good luck if you do decide to mod your Wii.