2019-08-09, 23:44
(2019-08-09, 22:45)Karellen Wrote: I am not aware of a way of doing what you ask. You could just put the extra disks in the Extras folder and use an Extras add-on... Extras (wiki)
Coming in v19. Not exactly what you are after, but could be used in some manner to do what you want... https://forum.kodi.tv/showthread.php?tid=337992
Looks like the v19 version is pretty close to what I am thinking. That way at least you can store the 4 discs as different versions, and that way select which disc you want. Might even be possible to two "versions" of the the movies, and 2 for the appendixes.