Clear. Thanks.

Sorry about confusion. As in my first post, I use TMPGEnc clip to determing crop values and adjust Phil's script with values. I was just asking about using DVD2AVI for cropping values since I see others doing this.

Is there an advantage to using VDub for this instead of TMPGEnc Clip?

No. But the problem is not the way you find the broder, the problem is what you do with this !
You cut and add borders that are not mod16 that means that you encode picture area that is also not mod16. THAT SCREW UP the mpeg2 algo.

You must compute the values with dvd2avi if you want to process like this OR do as BOulder told : find the exact value with tmpgenc or vdub then use FitCD to compute values for resising and bordering that will be mod16 !

Will do. Also,

With ALL DVD sources that are Film in DVD2AVI, I should use force film, even if small enough to process as interlaced in TMPGEnc?

My methods to date for maximum quality one 4.7GB dvd have been to:

1. Use DVDShrink if compression is 95% plus.
if not
2. Use your script as interlaced (no force film, no IVTC) if CQ90.
if not
3. Use your script IVTC (no force film) if CQ<80. (I'll start using ForceFilm and no IVTC now that I understand). I will also enter clip values into FITCD to get resize statement.

Is it a simple rule to always use ForceFilm if DVD2AVI shows 95%+ Film and never process these as non-ForceFilm interlaced?

Yes.

For less film percent, do the IVTC - unless the source is truly interlaced. You can tell that easily by saving the project without Force FILM and opening a simple script in VDub with the lines

MPEG2Source("path\clip.d2v")
Bob()

in the script. Examine a scene with lots of motion. If every frame is different to the adjacent ones (i.e. no duplicates or blends), you probably have a truly interlaced source. You can doublecheck it by examining several scenes but usually one is good enough to make the assumption.

Yes it is !

Maybe someone could enlighten me: does DVD2AVI recognize truly interlaced streams somehow? The flags in the video stream might reveal a truly 29.97fps video.

No DVD2AVI does not recognize anything else you won't have a percentage but a boolean : FILM/VIDEO...

Thanks, Guys!