Has anybody had any luck with backing up a Xbox Dual layer game eg. MGS Substance or RSC2 on 8.5Gb DVD+R DL disc? I tried backing up MGS Substance on a Verbatim. The Disc would not read in my Thompson drive Xbox, Phillips drive Xbox or Samsung drive Xbox! Hell, even my Pioneer DVR-A05 and DVR-A06 would not read the disc. Only the LG GSA-4120B I burnt it with would read it! Any help out there please?