I guess I am in a mood for programming. U will find attached a small Xcell sheet I have put together in order to help me calculate the free space I have on a DVD-R after IonePassVBR a movie. Usually I ovr first, to create the vaf file, for the main movie and any extras I would like to keep. Next I use an authoring programm to mux the streams together and create my vts sets. I ifoupdate the new and old ifos and have a first taste for the size of the semi-finished title set. Using this xls file and inserting the required data it calculates for me the new size of the video stream for the main movie. I believe it is pretty straightforward and easy to use. U can hover your mouse on the small red triangles that some cells contain to have some extra informations about the required action. ps. remove the zip extension and unrar.