> So I'm just curious if this ZERO loss DL is from all original DL discs or are there > the repressed discs used in the stack?
All discs have to be from the same mastering run. That's the only way this works.
Photoshop's Median filter won't give you a nice tourist-free image if you feed it 50 images from the same tripod of the Eiffel Tower, and 50 images from the same tripod of the Sears Tower, either.