I have a legitimate copy of NSMB Wii; the HBC installed and updated, and system menu 4.1E. I copied my NSMB wii save onto an SD card to take it to a friend's Wii so we could play on his setup. I then copied the save back from his Wii onto my SD card, but now when I try and put it back on my Wii, I get the error "The data may not have been copied" when using the Data Manager and indeed, on inspection, the data has not been copied. What's causing this? Is there an easy solution? Perhaps a homebrew utility that allows copying of save games indiscriminantly?