I know Greg and Duane but not Mark.....
Not related. Mark Almond not Allman like Greg & Duane.
I did tons of dubbing to RTR in the 70's and tons onto cassette in the 80's. 99% still sound great.
I did keep lots of notes including the release date of the original LP, dub date, source TT/cartridge and target tape deck used. I even included song titles and times all of which are readily available on the internet these days