Good timing. I just got this address. it will let you re-author and add files (chapters). Just learn the 're-author' process and it's pretty easy from there. DVD Shrink will let you add your files from your DVD to your computer and allow you to add or subtract sections. Menus will not work the same though, but DVD will play all chapters in succession with markers. http://www.dvdshrink.org/what.html