the DVD uses PC software called Digital Scrapbook that Macs don't have.
I'm not sure that I entirely understand what you mean here. Is this an actual video DVD, that can be played in any DVD player and when inserted in the Mac will play in the DVD Player application? If so, Handbrake should be able to do what you want.
If, on the other hand, this is a data DVD (
not a video DVD) written by Digital Scrapbook, and that data is only readable by Digital Scrapbook, then there's not much we can tell you. You would probably need Digital Scrapbook to export the video in some more friendly format.