I have the Osprey 827e cap card which allows for simultaneously video and [digital] audio captures. Ya I only cap things that aren’t on dvd/BD like Star Wars, The Keep, THX-1138. Or like you I’ll cap for color reference and use the BD as my edit video source.
My next project will be cleaning up the Grindhouse BD of ESB (color correction, noise removal, stabilization). I’ll use the digital audio track from the 1987 Japanese Special Collection LD.
For the TOOT method, do you just overlay the video tracks and adjust the opacity? What is the advantage?