after using digiex for my 360 demos, i decided to try using the 360's hd structure to play full parketplace games. I downloaded Halo 1 off of the internet. I placed it in Content/0000000000000000/4D530004/00005000 which is the correct folder structure for this game if you d/l from market place. I burned to DVD and it shows up fine in the recently played games menu....icon and all. Prob is when i hit play, it says unable to play halo.....any suggestions on how to fix this?