i have a origina dvd game that i want to copy on alcohol 120% so i dont wear my original out. Can someone help me?. I tried it a few times now ..i make an image i try to burn it or mount it but then it says have the wrocg dvd and the liscence key is invalid. i heard that Alcohol 120% would fix this. Am i missing something?. any special settings i should use.The game is Silent hunter 3