Sure, you can split the video block into many various lengths. Here's a guide:
http://www.dimadsoft.com/dvdremakepr...rt_chapter.php
Once you export the DVD, use the burning software to burn the DVD files (IFO, BUP, VOB). I'd recommend use
imgburn to burn. It is free, compact, and is really good at what it does. Basically, all you do is select the folder containing the DVD files and burn away. There are guides on how to use it
HERE.