You said you didn’t know what the ISO image was for. It is the image that is written on the DVD. Why anonye would want to just make an ISO image I don’t know, except they are out of DVD blanks, or want to burn more than one. Myself, I never make an ISO image, I just burn it to disc. You should tell the people it ain’t gonna pop their new DVD movie out in 10 minutes it takes about 4 hours for me. I close all additional programs, and let it run when I am done for the day. ~Cindy! ..