What the author of the article is proposing is actually a kind of steganography, albeit a rather crude one, and probably rather difficult to implement ...but e

What the author of the article is proposing is actually a kind of steganography, albeit a rather crude one, and probably rather difficult to implement ...but easy to explain (and sell?) to the entertainment industry, who have shown themselves to be mostly technically illiterate. Some cynical, unscrupulous hacker could probably extract a lot of money from them for such a service...