Who Framed Roger Rabbit 4K UHD (1988)

[Adam4Rizzel]

Originally Posted by TheDarkBlueNight

Plus the difference between lossless and lossy audio compression.

The technology is quite complex after all, most people don't have a grasp on every detail.

I think people also forget that lossless audio is its own form of compression. It's a form of compression with no noticeable or measurable loss of detail or information. ProRes 444 is as lossless as it gets for me in regards to lossless video compression, it's indistinguishable from Uncompressed video.

A Dolby Vision master in HDR10, to me, is a form of lossy compression, as you're losing detail in various individual shots (the dynamic metadata) to serve a tone curve that works for the whole feature (static metadata). For example, if you compare an effects-heavy movie like a Marvel movie's DV presentation on Disney+ vs the HDR10 presentation on disc, you can see more highlight detail in certain effects like lightning (I'm thinking Thor...). You're gaining more refined specular and contrast details on streaming, but you're introducing higher levels of compression, adding artifacts like macro blocking, etc.

The answer is to have Dolby Vision on the disc. Therefore, there are no compromises. I am, personally, not interested in supporting any 4K releases that don't include Dolby Vision, when a DV master exists elsewhere. Disney, Warner, and Sony have no excuses not including DV on their big titles and releases when smaller companies like Paramount, Lionsgate, Kino, and now even Criterion can do it for smaller films. Citizen Kane has Dolby Vision on disc, but Willy Wonka and Avengers: Endgame don't...