Is there a way to create a slipstream version of the leopard dvd since I have a ATI4870 in my mac pro I would like to generate from my original DVD a 10.5.8 bootable dvd. Is this possible? I heard I can turn in the 10.5.0 dvd and pay a media fee for a replacement 10.5.8 dvd. Is this true? How do you ask for this when you go to an apple store.