RE-Authorinng DVD Menus

I need to find a program that can edit DVD’s made with DVDshrink. I’ve ripped and re-encoded/shrunk the dvd, now i want to edit existing menus. Is there a program that can do this? I want to be able to have the functionality that is in programs like TEMPGEnc DVD Author or Adobe’s Encore. Is this even possible?

i tried menuedit, but i have no idea how to use it, its not free, and it doesn’t have the functionality that dvd authoring programs have (like complete editing features in TMPGEnc or Adobe Encore.) is there such a program that could convert the dvd menus to read in TMPGEnc or other cooresponding authoring programs??