on ebay. it was a bare cart with original label (serial number scratched out). the shell was pretty scratched too. you can only be sure it was not a boot if you open it up, but looked legit to me.
oh I saw that one. That one said nowhere in the auction if it was authentic or not. It also had pictures of two different labels lol. I figure if an auction says "100% authentic" then you have a much better shot of getting a non-bootlegged copy