jerlgrain said:

Did you ever happen to spot those veritcal ghosting lines in your original data/encode? Just curious.

OH, yes... here is the order of operations:

1. uncompressed original capture - they aren't there.
2. uncompressed color-corrected files (from Adywan) - they aren't there.
3. uncompressed upper-right spec removal - they aren't there
4. uncompressed resize/border addition - looks like they appear first here
5. compressed encoding for DVD - they are there

So they appear to be an artifact of resizing and adding the border. Since I did both of those in a single step (in Vegas), I don't know whether the resizing or the border addition caused it, but it is probably one of those two operations.