Thanks for all of that. I'm a non-techie and it's all gibberish to me, more or less. What I was able to take from it was to create a differentiation in the path and so I created a new folder, just for the colorized versions and now they reside there and I can click on two different versions, albeit ...

I have a few old movies in my library that were originally black and white but later were colorized and I have both versions. How do I differentiate between them?

I use Plex and it only recognizes one copy, which means I can only watch the version it recognizes.