2 words in that article on the DC horrify me, Lowry and grain removal,lol.
The extra grainyness was supposed to be an effect of the original cinematography to suggest a documentary.
Same with American Graffiti. Then they changed the color timing the audio and the grain levels on the DVD, its an abomination.
The biggest crime Walter Murch's soundwork is gone on the blu rays.
Newly created mixes were put in place instead.