I had major issues with this software... I had 2.0.2 and even though it previewed in and out points just fine, in almost all cases (iDVD and DVD recorder discs) packaged in image files, it failed to actually pull the proper start and end points..; most of the time it grabbed less than 50% of the stream, not including either the start or end, but the file sizes were correct. This is odd as it didn't seem to have this problem with physical discs... which is silly, since you can use MacTheRipper for free to take anything off of physical DVDs (which I do for all the stuff that comes off my Sony DVD-Recorder).
I also find the interface for segment selection horribly busy, it seriously needs to make things simpler... it works, but is overly complex.
However, after demanding a refund on this, the regular version, since it wouldn't work right, they seemed to have corrected the non-physical disc issues quite nicely in the Pro version... it may be corrected in this version... 2.0.7, but since I moved up to the pro version (thanks dev!), I don't know.