I have been trying to burn some of the new games following the img burn instructioncs and am having trouble. I bought a preflashed external drive. I get a option of write until end of image or overburn or write till end of disc (truncate) if i truncate i get optimum power calibration failed Device0:0:0] atapi;has124 b aloq usb) disc id:mkm-003-00 reason : no additional sense info information Believe i get this when i choose the trunicate option. would appreciate any info. joe