GeckoOS is designed to boot retail disc, so yes it works. (couldn't you just try and see by yourself?)
burned disc works if you have a modchip.
Maybe your modchip is interfering with retail disc detection?
solution 1 : create an ISO of your disc and burn it?
solution 2 : USBloader (but needs softmodding and installation of files). GeckoOS is better to boot games without altering the console's internal files.