Data Files For Dvd

[Photoshop kid]

Hi All

Just spent the last couple of weeks backing up my dvd collection with my new Pioneer dvd writer, fantastic results using Any dvd and clone dvd,

I have one question, I was going to back up some of my old data files which are on 650mb cd`s and put them on new dvd`s, is it possible to do that in stages or do you have to fill the dvd in one go?

Regards