Please read carefully..... It'll save us all a lot of back-n-forth. I created a bootable USB that works just the way I want it to. It doesn't matter how I got there, but I can not create a bootable CD the same way. My thought was to create a bootable ISO from that bootable USB and then burn it to a CD to create a bootable CD. The reason is I have an old computer that will not boot from a USB. That seems like the easy way to me. To elaborate, I wasn't going to because it usually gets confusing when I do, the function is to boot into DOS and run Spinrite on the drive. The USB was easy because I just created a DOS bootable USB and then copied Spinrite over to it. Can't do that with a write-once CD. Appreciate any help I can get on this.