Need help really bad

ok im trying to burn an xbox 360 game i downloaded. i have imgburn and i have the .dvd file. i changed the break sectors, and i put it to 2.4x to burn.
this is what my dvd drive in my pc is-
ATAPI DVD A DH16A6S YA16
i have the philips lite-on drive in my xbox 360 and it has been flashed on october 25, 2009.
i have the verbatim dvd+r dl 8.5 gb.
i am using imgburn. i tryed going into the little book in the lower right hand corner and was looking to change it to burn to DVD-ROM, but it was not there. what do i need to do for this to work?
pls need help i am smart but not this smart.

Perhaps you should buy originals instead of illegally downloading images.

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