I know a PC will not read an xbox disk, but does anyone really know why? I have read that the xbox DVD drive reads the disk backwards. Hmmmm... Who is going to believe that? Then there is the "dual layer" theory but movies are dual layer and a PC reads them. Only the abilty (for PC users) to record dual layer is new. Most PC DVD players read dual layer and have been able to for a long time. What is different in the format of the file on an xbox DVD?