Holy crap! That was some "wild" English.
Here it is in a nutshell:
1) Compress the whole movie (Full Disk) using an exteremely small target size: 1000.
2) Copy all the VOB files, IFO and BUP file for the one that contains the main movie and overwrite the ones created by DVD2ONE.
3) Start IFOEDIT and load any of the .IFO files. Click "Get VTS Sectors" and it will automataclly fix the IFO files.
4) Compress the result again using DVD2ONE. You may need to undershoot the size to something a little under 4472 to get it to fit on a DVD-R (i.e., 4430).
By doing this, you are compressing the hell out of the extras while compressing the main movie less. Being able to use different compression rates (ratios) based on PGC is a feature sorely lacking from DVD2ONE currently. This si the closest workaround possible right now.