Weird Super Paper Mario conspiracy?!?!?

Okay, so my little brother just recently got our old Wii up and running. (yes, I know, the wii is outdated but he still gets enjoyment out of it so its okay.) He used to love playing Super Paper Mario, but we haven't seen the disc in years. So today on the way home from work, my dad went to Game Stop and bought... show more Okay, so my little brother just recently got our old Wii up and running. (yes, I know, the wii is outdated but he still gets enjoyment out of it so its okay.) He used to love playing Super Paper Mario, but we haven't seen the disc in years. So today on the way home from work, my dad went to Game Stop and bought it. When we opened the game up, it already had saved files on it. I didn't think much of it since it was used. However, the files had my brother's name and my name on them... did our Wii just remember the data from our old disc and input it on this one? Or what?
Update: Closed Question
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