I think the main point to be made is that, during composing, the picture is for reference only. You don't need high resolution. That said, Its seems a bit out of the normal for a producer to send you a Dvd video for material. I would think that most would send a dvd data disk with an .mpg file. People differ though.
 
I you watch the video link, you'll see that the author takes the given video and produces a low-res copy for use in sonar. When he's finished, he then takes the rendered audio and mates it back up to the video and renders a reference copy for the producer, and provides the music track as well. It's important to note that this assumes that the final video rendering is done by someone else - the main work product here is the music track.

Vob is normally mpeg2, for the av content at least, you could always try renaming the filefrom .vob to .mpeg before importing?

"The audio looks like a mono track but sounds stereo?"
 
DVD video usually has an audio file that can be used for mono, stereo, and several surround formats. It's all encoded into a streaming MUX, or Multiplex signal, along with the video data.
 

Thanks guys...

The video jungle is a wild one to deal with these days... What video work I did in the past always used a reference video to compose to then supplying the final audio to the videographer to insert in the final...

But this time I found myself stuck in the middle? I was given a DVD and asked to replace the audio...

I was hoping I could do this within Sonar, but I guess not... I did finally manage using VideoPad (excuse my mis-naming it earlier)...

I am still very confused about which resolutions accompany which file formats and which encoders to use... And what bit rates etc...

Many thanks to all for jumping in with helpful info..

Keni

I'm going to purchase Vegas Home Studio, I didn't know you could add streamers in there!
I really with Cakewalk would add such features.
 
Do ever send the final project as a Pro Tools file?
 
 
 
 
Just an FYI ...Adding streamers in Vegas is something I came up with myself.  Vegas does not have a streamer function. If you want to see how I do that, check out this video...
 
http://www.youtube.com/watch?v=ShFEvnOKOio
 
 
About your question regarding Protools.  I send OMFs with 5-7 audio stems to the person mixing in Protools.  Protools imports my audio and places it in the correct spot when I use OMFs. 

Excellent video!!!!