What WAD file are you trying to load? To use wads you need to install them with a Wad Manager. If your talking about a game then you would just put the .wad file in a folder called wads on your SD card or USB drive and install it with a wad manager. It would then appear as a channell on your Wii menu. use the search function and you will find alot of info regarding wads. hope this helps.