My CTC-16XL Project.

[Yamamaya42]

I'm not entirely sure that is a macrovision issue or not, but it can be tested.
The videos on the test DVD were originally MKV format, and converted to DVD using Freemake Video Converter, there is no option for copy protection in the burn setting, nor region code. So it is most likely off, but can't be sure.

I do have to option of trying my Pioneer LD-V8000, this outputs pure analog video with no copy protection, and can go with helping with what I'm suspecting that this is a symptom of something else I have not found yet.

I think just to err on the side of caution, I'll replace that cheap ass .1uF cap ceramic cap of unkmown tol on the amp, with one of the better film ones I have 10%, and wire in the video cable I intended to use for the final setup and see what happens.