The Wailing / Gokseong (2016) https://www.imdb.com/title/tt5215952/
Plot summary: Soon after a stranger arrives in a little village, a mysterious sickness starts spreading. A policeman, drawn into the incident, is forced to solve the mystery in order to save his daughter.
"High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard, designed as a successor to the widely used AVC (H.264 or MPEG-4 Part 10). In comparison to AVC, HEVC offers from 25% to 50% better data compression at the same level of video quality, or substantially improved video quality at the same bit rate." https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding
10-bit color depth should ALWAYS be used when encoding HEVC (x265), because it saves bandwidth and results in higher quality per bitrate. Even if the source is only 8-bit, like regular BluRays are, 10-bit encoding should be used for the reasons stated. Regular BluRays are encoded in H264, not H265 (HEVC). There's a new disc format called "Ultra HD Blu-ray" ("4K Ultra HD"), which is encoded in H265, with 4K resolution. Unless the source of an encode is this new format, it's in 8-bit color depth.
"... encoding pictures using 10-bit processing always saves bandwidth compared to 8-bit processing, whatever the source pixel bit depth." http://x264.nl/x264/10bit_02-ateme-why_does_10bit_save_bandwidth.pdf
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Command used to extract core DTS track, and remux: ffmpeg -i "/home/lucifer/The.Wailing.2016.KOREAN.1080p.BluRay.AVC.DTS-HD.MA.5.1-FGT.mkv" -metadata title="" -map 0:v -map 0:1 -map 0:s? -bsf:a dca_core -c:v copy -c:a copy -c:s copy "/home/lucifer/rips/Gokseong.2016.1080p.BluRay.x265.DTS/Gokseong.2016.REMUX.mkv"