problem with Dr Divx & VirtualDub Mod

[tandi]

hi , i have dvd movie - which have vts_01_1 till vts_01_5
i try convert it with TmpgEnc Express to .mpg but it have synch problem

so i try to convert it to avi first with Dr Divx, after select all vob , it analyzing then appear this error

http://i305.photobucket.com/albums/nn231/tanditan/div.jpg

then i decrypt it become 1 big vob use dvd decrypter
and want to convert it to avi with virtualdub mob , after opening the file , get this message

http://i305.photobucket.com/albums/nn231/tanditan/vdub.jpg

i want to make like 2 movies in one dvd , i know if will reduce quality , that not matter for me, so i need to convert it to a little smaller size , i use TmpgEnc Express but after convert it didn't have any sound, so i use vobedit to extract the audio, but the audio that grab out from vobedit was unsync with result from Tmpg

so i try to convert it first to avi then use Tmpg to convert it to mpg, that my error begin occur

and have install Stinkys MPEG2 Codec after installing it , but still got problem like picture 1

i'm need help here, what did i miss ? codec ? or what ? thanks

( sorry for my bad english )