Centurion (2010)
https://www.imdb.com/title/tt1020558/

Plot summary:
A splinter group of Roman soldiers fight for their lives behind enemy lines after their legion is devastated in a guerrilla attack.

Video: HEVC (x265) 5000 kb/s (VBR)
Audio: dts (DTS), 48000 Hz, 5.1(side), 1536 kb/s (eng)
Subtitles: Dan, Eng, Fin, Ice, Nor, Swe

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"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."
https://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 "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/Centurion.2010.1080p.BluRay.REMUX.AVC.DTS-HD.MA.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 "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.REMUX.mkv"

Command used to encode:
HandBrakeCLI --format av_mkv --markers --encoder x265_10bit --encoder-preset slow --encoder-tune grain --vb 5000 --two-pass --vfr --aencoder copy:dts -i "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.REMUX.mkv" -o "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.1080p.BluRay.x265.DTS.mkv" 2> >(tee "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Info/Centurion.2010_HandBrake_log.txt")

Commands used to merge with subtitles:
mkvmerge --title "" -o "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.1080p.BluRay.x265.DTS.TMP-25000.mkv" "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.1080p.BluRay.x265.DTS.mkv" --no-video --no-audio --no-chapters "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.REMUX.mkv"

mv "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.1080p.BluRay.x265.DTS.TMP-25000.mkv" "/run/media/lucifer/0d6b70fa-0c49-47d6-84c1-3f8509d52b58/rips/Centurion.2010.1080p.BluRay.x265.DTS/Centurion.2010.1080p.BluRay.x265.DTS.mkv"

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