I haven't used my Wii in a while, and I just downloaded a wad, I took out my SD card, and it say I have: Uh, what? Last time I used my SD card, it was NOT full. How does this happen? The only thing I've done in the past month with the Wii was change my system theme, and read the Hulu message I got. How does it just fill up? I decided to delete a GBA rom I had, and it cleared up some space, but still. Does space just fill up by itself?