So, let's say I have a standard definition, feature length, colorized film, say from a VHS tape or a laserdisc..... I also have a restored, black-and-white version of the same film on DVD or BluRay..... I have the means to rip both to my computer and have done so numerous times......

Now, How would I go about superimposing the color signal from the former over the latter and exporting it in a file suitable for burning to DVD, and with what software?

Forgive me if I sound dense,, but this is something I am very interested in. I am not familiar with the software you mentioned.

If it is not too much trouble, I would greatly appreciate an in-depth explanation of how to do such a project from start to finish.

Thanks in advance!