Thanks for the help.
Sorry, I didn't make myself clear enough.
I could already do this - works fine.
However, the boot image contains files that were on the original diskette. (It boots Win98, loads CD and mouse drivers, then the autoexec file runs Ghost.)
It is these files in the boot image (whick I used to change on the floppy disk) that I would like to change (just a little to reflect the change of backup media from CD to DVD).
I tried (in XP SP2) making a virtual floppy disk, formatting it, then using this to make the disk image, but the built CD didn't work (using the custom Options IS09960 + Joliet ... Sectors to load 4).
Your excellent program is doing it's job very well. I just kinda hoped you had some thoughts on how to add what I want to the image.
Thanks
Jim