i am trying to make a backup of metroid trilogy. i used imgburn with layer break at 2084960. i've tried manually setting that through imgburn settings and also pointed the program to the .dvd file. but both times the disc is not being read. booktype is set to dvd-rom for dual layer and i am using verbatim discs. i have drivekey installed with menu 4.2u. no soft mods. any help would be appreciated.