the 512mb chip inside the wii. that holds the channels, settings, ios's etc.
a .rar needs to be extracted using a brilliant little program called WINRAR.
all save files have a unique id, and cannot be copied freely from one wii to another.
heres a link to the wads for the latest shop channel, but that will soon be obselete when the 4.1 update comes out in NTSC-U and PAL territories.
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