Im here everyone!!!

So today I was @ the mall and I have 40 bucks so I bought a used copy of Loz Twilgiht Princess cause I here so often Its a great game. So I rush home to play it. I put in my Wii the right way, and it plays the intro and tells me to choose my name and my horses's name so I did Link and Epona, and then my Wii just goes Bizzerk and says it was unable to read disk. What should i do Is it the wii or the game? Should I contact Nintendo?

See ya, 3dfd =D