Have you either entered the BIOS Setup and changed the boot order to select the CD-ROM as the First Boot Device or are you using a one-time boot key at POST to select the CD drive so that the BIOS chooses the linux CD?
From your posting, this does not seem to be the case. You can press the Pause key as the POST screen splash appears to freeze the process and read what keys to press for Setup or a one-time boot.
When the live-cd boots, you might key down the menu and run the check function to see that the live-cd is good enough. Otherwise, boot it live.
As already mentioned, the live-cd has to be burned as an image file or it will not boot.
Last edited by thorkelljarl; 02-22-2010 at 02:37 PM.