Please note that is the "best", not the "best + user firiendly" software.
1) Extract the movie (which I'll call 'VOB set')
2) Use DVD2AVI (or, better DVD2AVIDG) to extract a D2V from the VOB set (and, if a MP3 audio is needed, extracting also the audio [Menu Audio_Output Mode_Decode to WAV] with A/V delay =0 from the desired track [menu Audio__Track Number)
3) Compress WAV --> MP3 CBR with HeadAC3he (you can use the preset Alt CBR, which will create a MP3 128 kbps CBR). Otherwise, you can make WAV --> AC3 1+1 with FFMPEG GUI (you can use the dafault 192 kbps, but even 128 kbps is acceptable, like for MP3 audio. It depends on the movie's type.
4) Install AVIREader codec 5) Load the D2V with VirtualDubMod to load the video part
6) make Stream___Stream list__Add to add the desired MP3 audio.
VirtualDubMod's filter settings can be read from our \guides page (I use VirtualDubMod bacause ut also loads MP3 or AC3 instead of being forced to create a 'fake WAV' with CDEx so VirtualDub can load the WAV file). Aparte that, filter's settings are identical.
If you want to determine which Track is the desired language, just open the IFO corresponding to the VOB set with ReJig.
With ReJig you can also extract, if you with, the desired audio track in the AC3 form with 'zero delay', if you wish.
If you do so, you'll have to add an AC3 audio instead of a MP3 audio.
But careful, this the "best" and will create an extremally good AVI; is NOT a the most user-friendly way to do.
Maybe someone else can suggest you a litttle more, about that. I did not look for an 'easy way' but a 'very good way', only.
Or you could use Mpeg Mediator SE http://www.divxland.org/software.php (near the bottom of the page). You simply select the VOBset (which you should have on the HDD), choose your plugins, and convert. It's quick too.
