Of the Shatner movies, I only have 2, 3 and 4 on DVD. I bought them in a set called “Star Trek: The Motion Picture Trilogy”.
https://www.amazon.com/Star-Trek-Picture-Trilogy-Domestic/dp/B001TH16CY
I don’t know anything about where they were sourced.
Here is a comparison between the old two-disc releases of Khan and SFS and their blu-ray counterparts ('09 blu-ray for Khan). Annoyingly, they did not provide dvd screengrabs for Voyage Home. I’d very much like to know what it looked like after seeing it in 35mm. The blu-ray’s colors are way off from what I saw on that print.
Your pics/links didn’t show up, man! I only have one screenshot comparison for the DVDs on-hand for IV. 2002 on top, 2009 on the bottom:
It’s a lot sharper and it has slightly colder colors, but there’s a ton of detail lost from DNR. Just look at Spock’s robe!
Edit: and here’s the Bluray if you wanted your daily dose of vomiting:
