So basically, I had a scratched copy of mario kart wii. I was not able to play it at all, and trying to dump the game would result in an error. I could only ever get to the menu of the game. However, today I really wanted to play the game, I looked for solutions but couldn't find one. I then cleaned the game disc with rubbing alcohol and a paper towel. I tried to dump the scratched disc with cleanrip and to my suprise, the game is fully working without any errors.