Ive been in the process of making a Multiple Windows installation DVD, using an image of a custom boot floppy (DOS/WIN9X style, not 2K/XP style) to make the DVD bootable. The floppy disk that I have used for the image boots properly every time, and if I write the image to a CD it boots properly. However, if I write the SAME bootable image to a DVD, it does not boot when the computer starts up. This computer has no problem booting from a Knoppix Live DVD, so I know there's not a hardware problem.