Asking for archive file when backup

Hi,

I did a fresh install of my windows xp sp3 and want to do a backup using B&R 10. I am creating a backup using DVD, from the progress screen it appears all was doing well then suddenly a window pops up and is asking for the archive file "IMG1.PBF", saw the file on DVD and I pointed to it. And it ask for another file "IMG0.PBF". I could not find this file on the DVD even did a full search on my computer. I don't the this is how the backup should progress. Any ideas?

Another question, is backing up the Hard Disk First Track important? Apparently it cannot be saved in disc. When and how do I use it?

Thanks a lot!