Help - I have a xbox with a matrix chip. I am burning games using Nero, Toshiba burner and Memorex DVD-r Media. I have already burned Splinter Cell and Halo using these specs. They are both working perfectly. My last two burns - Ghost Recon and Dead2Rights burns successfully, but when I put them into my Xbox it won't get beyond the Big X and the Microsoft at the bottom. It freezes up there. Any ideas??