Hi, I have downloaded several different sets of the 64-bit ISOs, and have burned them to CD using various of my known-good ISO burning softwares, including Nero and DeepBurn on Windows, as well as the native CD burning KDE linux tool on Xandros Linux. I am using mirrors from the site, like kernel.org. I have chosen low burning speeds also, but when I insert the ISO CD into a server and boot it up, the ISO doesn't work. I have all of the BIOs/boot settings perfect, the machine is definitely 64-bit, and even when I insert another OS, like Fedora, or Whitebox, it works fine. Is there something i'm not doing, or doing wrong when burning these 64 bit CD's? I'm in a colo facility and would really like to leave here having converted a bunch of my WBEL and FC boxes to 64-bit Centos. Any help would be much appreciated. -karlski