That's kind of what I suspected, but it seems like Microsoft could put it all together in one backup.
So, that leads me to a follow up question: If I use one external HD for my normal periodic back ups (using the Windows back-up program) and for the System Image Backup--if I ever need to use the System Image after a crash, will it work even tho it shares the HD with other backups? (Space on my huge external HD is not an issue.)
Many thanks.