OK another question.
Using VOBBlanker I can see more ProGram Chains (just so you know I know what PGC means, although I don't know much more!) than in Imgburn, including ideal ones where the PGC start point would be the ideal place to follow a layer break. Why is this? And can I use VOBBlanker in any way to make these PGCs appear in Imgburn? It seems I don't need to split a cell with these DVDs (which I failed to do first attempt btw), but only make all the existing PGCs visible in Imgburn.