imgburn is so easy to use. all you need is a .dvd file to specify the layerbreak. Imgburn will even scold you for pointing to the iso if it sees a matching .dvd file for the iso you are attempting to burn.
so you have game.iso and game.dvd
Inside the .dvd file is just 2 lines:
the .dvd is just a text file that tells imgburn what iso to burn and what to set the layerbreak at. Very simple.
Also abgx will create the .dvd file for you if you run the iso through it.
Trust us, go with imgburn, you'll never regret it.