I'm not sure if I totally understand how the backup works for the X7. My understanding is you just have to go into the menu and choose backup the memory pak and it creates a save file for it on the SD card. When I do this and then try to play with a different memory pak in the controller without a save on it, the saves don't show up. (game is Mario Kart 64) I'm trying to backup my ghost data as I have an amazing one a friend made years ago that I don't want to lose. Do I always have to have the same memory pak in it? I was of the understanding that this isn't required.
I've searched on here for a detailed explanation, but none of them really pass the peanut butter and jelly test, so I feel something might be being left out as if all I need is a memory pak in after the backup, why isn't this working? Thanks in advance.