Hey there, could someone give me a hand here?
I'm having the same issue Metalkingboo had, when trying to play this error message appears: "An error occurred during the process of reading from or to the Wii system memory. Please refer to the Wii operations manual for details"
He resolved it by deleting Another's files but I have never played it through riivolution, it's my first time using this app. So, I don't have any files related to it in my sd card.
I tried deleting the contents of the save folder as Skawo suggested but it didn't help either.
I don't know if this would help but I also moved all NSMBW save files I had on my Wii system memory and sd card to another one just to see if it would help but the same error pops up.
My NSMBW is USA NTSC as well as my Wii system