Hi php111 , I will try to answer your questions. The guide at doom9 is a bit confusing . It is also somewhat specific to the movie Matrix.
For #4 Yes it tells you to copy/paste all IFOs to the IFO Sub-folder.
This will usually work without corrupting them but sometime Windows does corrupt .vob files when copying & pasting . Not always.
For #14 Sub-folder â€œDisk 2â€, copy all VTS_01_. files from your â€œMatrixâ€ folder .
I think this would contain the "Menu" & maybe "Special Effects" .
For â€œDisk 1â€ folder, to save space, weâ€™ll just drag the following files from your â€œMatrixâ€ folder.The VTS_01_. & VTS_03_. This would be the "Menu" again & the main movie .
This is so you have the menu on both discs but â€œDisk 2" should autostart. If I understand correctly .
I haven't done this with IFOEdit so I'm not completely sure but that's my interpretation.
The link Gummigutta posted for the older free version of DVDFab would probably work . I haven't used it but it is my opinion it would work. It would be easier too.