[Ted Kendall]

If a human made it, a human can reproduce it, agreed, but the economics are unfortunately against a top-quality revival. For one thing, Dolby has happened on specific chips for decades, so either these would have to be reproduced or discrete implementations for Dolby C onwards developed (the Wireless World Dolby B unit required closely matched FETs, but nothing else unusual). The economics of setting up and running a coating plant imply a large market, too, plus the expertise to maintain quality and consistency in the output. Similar concerns apply to heads and mechanisms. Of course, most of these factors can be eased by mere money, but a larger potential market than that for vinyl would be needed.