I downloaded a file KNOPPIX_V.39-2005-05-27-EN.iso and copied the image to a CD (using Sonic Record Now, burn image option). I changed the BOOT order in the BIOS setting to boot from CD, but it keeps loading WIN XP. When I check the CD-ROM drive from my Windows Explorer to see if the image was burned properly, it reads that the drive is not accessible. I tried burning the image 3 times to a CD, but none of them seem to work. What am I doing wrong?