I've just tried the 7-day demo and I am wholly underwhelmed.
At first, I though I might be onto something good with its editing facilities, but all it does is leave you with several MPEGs on the hard disc, after a very long time. Very handy, that!
So, you can't produce a new, custom DVD with just the titles and chapters you want - the way the blurb implies.
Moreover, it appears not to do any compressing either, so you're back to fooling around with two discs...
I've deleted it