Things you will need for this.
A Computer (duh)
A Xbox 360 (duh again)
a xbox G.O.D either one you have downloaded or your own you put on your computer.
a ISO program(imgburn)
DVD R+ DL or DVD +R most will not fit onto a DVD R+ but some will.


Once you have everything needed -

1.Open up your ISO program and make a folder called Content (the C most be in cap)
2.Now inside that folder make one called 0000000000000000 (16 zeros)
3.Once you have done that you will put the G.O.D or arcade game in here ex: Lego rock band folder is named 575207F0 this is the game so put it in the 0000000000000000 folder same as a arcade game.
4.Now make it a ISO
5.When its finished put in your DVD and burn the ISO you just made.(make sure you open the just made ISO, (if its your own paid for G.O.D or arcade game skip to step 7)
6.Now you most put the gamertag that came with the G.O.D or arcade game on the HDD
7.Now when you put the disk into your Xbox you most go to Game library to start the game.

I Hope you guys like it.