copy vob files

[taffio]

hi,
i used smart ripper to extract the film and then the new program dvd2one to squash the vob files so that they fit onto 1 dvdr.
i have copied the vob files ok with nero dvd but on the dvd2one website it says dont use nero try prassi primo or record now.
so i just wanted to know how i use prassi primo or record now max to copy vob files.
no encoding done at all you still keep the quality picture , but all you got is the film.
www.dvd2one.com