Hi, i'm using a pioneer 108 dvd burner for my dual layer burning. So far, all backups with regular playstation 2 games work perfect on my yuden's. I read the forum on the gran turismo 4 being unrippable; however, people have done a image copy onto a dual layer but have only got it working on certain burners. I have 5 dual layer disks but want to ask before i start. I am going to use dvd-decrypter to make an iso, but do u believe it will work? I am using the usa version of the game.