i have obtained an iATKOS.iso file for osx however every time i burn the image onto a dvd, the dvd isn't read and the boot starts up normally as if the dvd was not in the machine. i've tried this over 3-4 times now and for what ever reason, it doesn't boot. i have taken steps to ensure that it boots directly from each of my cd drives but nothing.

is there any specific method or software i need to use to burn the image onto a blank dvd?