There's an article in the LA Times today about the tricky "intersection between aesthetics and technology" (as one commentator puts it, with the latter camp prevailing) in digital restoration of movies for DVD production. In particular, it seems many purists dislike the elimination of film grain in the scanning and cleaning up processes of restoration/transfers.
Among those quoted is Leonard Maltin, who "singles out Citizen Kane as a case in which the film grain assisted the visual effect." Says Maltin: "Kane is so full of set shots, most of them generated on an optical printer, that they counted on a certain amount of graininess to help camouflage the illusion. You remove all of the grain, as they can do miraculously well, and you also expose some of the illusion."
I wondered if anyone has observed this on the WB DVD as opposed to other formats. Having only just recently tottered out of the stone age myself and owning but a single lonely DVD at present, I'll have to reserve opinion.