i'm trying to play a backup copy of dirt on my 360.. but i keep getting the "put this disc in an xbox 360" error. I know that the disc does work cause i tried it in another (older)console.. i've tried re-copying it with both imgburn and clonecd.. and at different speeds...

other backups play just fine.. my console is one of the new liteon drive ones that i've just had flashed.

any help would be great..

thanks in advance.

el