Best encoding programme?

I use the word ‘encoding’ please correct me if i am wrong.
I want to convert an mpeg file into vob file. can anyone tell me if there is a better programme than nerovision express as that is what i have been using but recently encountered some problems so would like to move on now.
Thanks alot

TMPGEnc DVD Author

right ill give it a bash!

i tried tmpgenc dvd author and got an error saying the gop is too big???
what does this mean?
and can i add more than 1 file as the film i would like to encode has 2 mpeg files??