Originally posted by Singh
Is it a backup? If it is make sure that its running off an external HDD, put in any disk and when you launch the game from multiman and return to XMB make sure that you click on the blue disk as that will direct boot the game and that fixes most problems like blackscreens etc.
Make sure before the games lauched from multiman that you click on fix permissions because it helps too.
GT6 has large files and will not run from an external, it must be internal with BD Mirror selected in multiMan. Also do not direct boot it, just select it in multiMan with X and when you return to the XMB run it from there. I always have a disc in so I run everything from that, it may work discless but I have never tried.