kalyway wont even boot on my system?

[bartp]

Hi,

i finally got the nerve to start installing osx om my pc.
(GA-ep-ds3 board, q6600 quadcore, gigabyte 8600gt 256mb, 4 gig ram , 2x sata western digital 500gb)

found a great tutorial.
http://www.gadgetted.com/?p=573

got all the stuff. burned kalyway on dvd.. 3 times. using toast, discutility in osx

ive set my bios the same as in the tutorial
smiled... put in the dvd.... waited.. nothing... it wont recognise the dvd to boot from.

what can i be doing wrong? (apart from being too Noob for even trying to install osx on my pc)

thanks