Quick bread down. Macbook Pro 5.5. Mac OSX 6 copied on to my desktop. I am using a memorex dvd-r 4.7gb dvd to burn the image so i can install. I have never burned a dvd on this mac, so I think I'm just doing something wrong. When I go into to disk utility, select the inserted cd and press burn, it routes me to choose the image/file I want to burn. No matter what I go to, the disc image of osx or even movie files on my computer, they are greyed out and cannot be selected. Please help asap. I need this upgrade to run software for work today. p.s. i have also loaded in finder and put the images into the folder and selected burn. this fails after two minutes.