Hello PCHelpForum, I have a dos boot CD (modified win98se) I have used it for years for dos utilities like ghost and partition magic. I use it on my test station in my lab. Recently I needed to replace the motherboard. All of the peripheral hardware is unchanged. With the new mother board the boot disk no longer is able to load the drivers so that I can access the CD-Rom drives. I receive the error "no valid CD Rom devices detected. Where can I find a dos boot CD or dos drivers that will work with the newer motherboard CD Rom drive controllers? Thank you for your help.