Has anyone else tried to update their backward compatibility on the 360 using a burned DVD update? It doesn't work for me and the drive makes a squeaky noise. When I look at the burned side of the DVD a see a very small burned circle area(the file is only 13 mb), maybe that's why the 360 DVD drive can't read it? But the CD is bigger, 4.7GB 13MB compare to 700MB 13MB.