to save space on my Wii internal memory i often have to transfer a wad, that i have installed, from my Wii onto my SD card using the Wii Channel Manager. i then delete it from my Wii to free up save blocks. when i go to transfer the games from my SD card back onto the Wii internal memory using the Wii Channel Manager, some games transfer fine and others say "the data was not copied". why is this happening? is this a known issue that i just never read about? am i not supposed to transfer installed wads like that? for the games that do not copy back onto the Wii, do i have to reinstall the wad files?