There are lots of guides about using SmartRipper. One thing to remember is that DGIndex used to be called DVD2AVI.
Check out
http://www.afterdawn.com/guides/arch...vi_tmpgenc.cfm . It's a guide for converting DVD to VCD (MPEG-1), so it is quite close from what we do, except for the resolution (VGA) and Rate Control (VBR).