Look for releases with Remux in the name if you want the untouched disc audio/video. For most people, this x265 10bit HDR encode hits the sweet spot between quality and storage.
: Indicates the source material is a physical 4K Ultra HD Blu-ray disc, which typically has a much higher bitrate (and thus more detail) than streaming versions. Stranger.Things.S02.2160p.BluRay.x265.10bit.HDR...
is shot digitally (Red Dragon/Helium at 6K/8K), the 4K Blu-ray source provides a noticeable uptick in fine detail—think skin textures, the fabric of the Ghostbusters costumes, and the grain of the 1980s set design—compared to the 1080p Blu-ray or compressed 4K streaming. Encoding (x265): Look for releases with Remux in the name