I downloaded a .iso file with the name debian-update-6.0.4-amd64-DVD-1.iso from http://debian.org and burned it with k3b with default settings, but unfortunately found it won't boot. Did I download the wrong image? There are three folders in the image file: .disk, dists, and pool.
Why can't I boot off my Debian update CD?
debian;boot;bootable
Well I guess I solved my own question.Debian Images with update is not supposed to be bootable.http://www.debian.org/CD/faq/#update-cd