Thanks for files. Hard to tell what might be wrong.
As we can see you edit only first set of menus. Not good idea. Either delete other or edit them as well.
Do you have "autobypass" enabled? It will speed up playback through hidden parts.
Can you do some tests?
Just import, hide part of the movie (so that it fits to DVD5), export and burn to RW. Does it work?
Try bypassing selection menu as described here:
http://www.dimadsoft.com/dvdremakepr...ypass_menu.php (add cell command, etc). Does it work?