[STLBlues]

I like to use DVD Shrink. The "Shrink" part of the name can be misleading though. If you have version 3.1, do the following:

Click "Re-Author"
Drag the main title over to the left
Click on the tiny chapter box (it has an arrow pointing left and right)
Find a good spot to split it in half (i.e. Chapters 1-10 for Disc 1, Chapters 11-20 for Disc 2)
Click "Backup"

For version 3.2

Click on "Re-Author"
Click on "Start/Select End Frames"
Then do the same listed above. This will take out the menu (which is unavoidable when spliting over 2 DVD5's), but chapter marks will stay intact, and there will be NO compression.