Hello everyone! I have a 2.33ghz intel Macbook Pro from 2006, version 2.2 I believe, formally running snow leopard. So yesterday my HD crashed, so I am attempting to use a Ubuntu Live Cd (I also have Knoppix too) to just see the HD and attempt to pull a few key files off the drive. The problem I'm having is that I put in the CD/DVD (I've tried both the Ubuntu CD and the DVD one found here, http://cdimage.ubuntu.com/dvd/current/, and Knoppix 6.2.1 CD) Boot, Immediately press "C" or "Option/Alt", and it does NOT see a CD/DVD. I tried inserting the snow leopard disk, and it will "see" that, (I am able to use disk utiltiy ect, off the disk), so I know that the DVD drive is working, and that I am at least doing the process of getting the computer to boot of a CD/DVD correctly. However when ever I put any of the ISO burnt CD/DVD operating systems I have tried it doesnt "see" anything. (I have tried a knoppix 6.3.1 CD, burnt off a windows machine, a Ubuntu live CD, burnt off a windows machine, and the same Ubuntu live CD, burnt off a mac, and now I'm downloading a Ubuntu Live DVD, and will burn it on a windows machine) So my question is does anyone have any idea why its not recognizing any of these ISO burnt CD/DVD operating systems?? How do I get it to see them? Thanks for any help anyone can give!!