Want to Establish Best Workflow(s) for Combined HD to HD (e.g. Blu-Ray) & SD (DVD)

The story so far:

  • I have a resurfaced (old) project shot in HDV 1440×1080 i50, Video Levels 16-255.
  • This has been edited in Sony Vegas 10, as a project consistent with the footage (hence HDV), but with Audio 44kHz (due to predominantly CD music background), and with levels over full-range 0-255.
  • My first attempt involved (from Vegas 10) rendering down to SD, encoded in GoPro-Cineform.  This I imported to Adobe Encore and generated a DVD which looked acceptable.
    • In retrospect, I discovered that I had enabled Vegas’s renderer’s “Stretch Video / Don’t Letterbox” option.  Ideally I’d have wanted it to be cropped (top and bottom) to fill.  I am less familiar than I would like  with Vegas-10’s nuances in this respect..
  • Subsequently I experimented with the AviSynth’s-HD2SD approach, which prior to Adobe CS5 was claimed by others to give superior results to scaling within Premiere etc.  However:
    • It has since been observed by some that Adobe CS6’s new CUDA-based scaling algorithms are almost as good.
    • In my own experiments with using HD2SD on my current (old) project’s HDV-to-SD requirement, I found HD2SD’s results inferior to (e.g. more blurred than) Sony Vegas’s “Best” (Bicubic) scaling processes, which I believe/assume to happen equivalently both in-project and on-render.


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