minecraft shows error

Hi i have CFW 4.88, cobra evilnat 8.3. I downloaded minecraft then put JB folder in internal HDD's Games folder. It shows in game list but has error of 80010017. The i made iso with multiman, put it in ps3iso internal hdd folder, it shows error of "Encrypted/invalid iso". So i could not run the game.. please help. what's wrong. Other games i have from game parlour runs fine.