So this has been a thing for a while. Some HDR movies will trigger a green flash right as the movie starts, and some do not, and it’s consistent which do and which don’t. Trouble movie seems to be foreign movies (24hz) vs domestic USA (23.976hz).
Here’s the mediainfo of one that green flashes:
General
Unique ID : 307788893532428253922234914385750573011 (0xE78DFC12B4149EFE3EAC55EE1192BFD3)
Complete name : /Volumes/54TB RAID A/Blu-ray 4K/Perfect Days (2023) UHD/Perfect Days.mkv
Format : Matroska
Format version : Version 4
File size : 59.6 GiB
Duration : 2 h 4 min
Overall bit rate mode : Variable
Overall bit rate : 68.5 Mb/s
Frame rate : 24.000 FPS
Movie name : Perfect Days (2023)
Writing application : mkvmerge v88.0 ('All I Know') 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1
Video
ID : 1
ID in the original source medium : 4113 (0x1011)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2 h 4 min
Bit rate : 65.0 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 24.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.326
Stream size : 56.6 GiB (95%)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 587 cd/m2
Maximum Frame-Average Light Level : 141 cd/m2
Original source medium : Blu-ray
Audio
ID : 2
ID in the original source medium : 4352 (0x1100)
Format : DTS XLL
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Codec ID : A_DTS
Duration : 2 h 4 min
Bit rate mode : Variable
Bit rate : 3 460 kb/s
Channel(s) : 6 channels
Channel layout : C L R Ls Rs LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 3.01 GiB (5%)
Language : Japanese
Default : Yes
Forced : No
Original source medium : Blu-ray
Text #1
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 1 h 44 min
Bit rate : 14 b/s
Frame rate : 0.076 FPS
Count of elements : 473
Stream size : 10.8 KiB (0%)
Title : English (SRT)
Language : English
Default : Yes
Forced : Yes
Text #2
ID : 4
ID in the original source medium : 4768 (0x12A0)
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 1 h 44 min
Bit rate : 7 771 b/s
Frame rate : 0.152 FPS
Count of elements : 946
Stream size : 5.78 MiB (0%)
Title : English
Language : English
Default : No
Forced : No
Original source medium : Blu-ray
Text #3
ID : 5
ID in the original source medium : 4769 (0x12A1)
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 4 min
Bit rate : 12.6 kb/s
Frame rate : 0.233 FPS
Count of elements : 1740
Stream size : 11.2 MiB (0%)
Title : English (SDH)
Language : English
Default : No
Forced : No
Original source medium : Blu-ray
Text #4
ID : 6
ID in the original source medium : 4770 (0x12A2)
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 3 min
Bit rate : 9 823 b/s
Frame rate : 0.167 FPS
Count of elements : 1238
Stream size : 8.71 MiB (0%)
Title : Spanish
Language : Spanish
Default : No
Forced : No
Original source medium : Blu-ray
Text #5
ID : 7
ID in the original source medium : 4771 (0x12A3)
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 4 min
Bit rate : 15.3 kb/s
Frame rate : 0.241 FPS
Count of elements : 1802
Stream size : 13.6 MiB (0%)
Title : Spanish (SDH)
Language : Spanish
Default : No
Forced : No
Original source medium : Blu-ray
Text #6
ID : 8
ID in the original source medium : 4772 (0x12A4)
Format : PGS
Muxing mode : zlib
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 2 h 3 min
Bit rate : 8 851 b/s
Frame rate : 0.166 FPS
Count of elements : 1232
Stream size : 7.84 MiB (0%)
Title : Turkish
Language : Turkish
Default : No
Forced : No
Original source medium : Blu-ray
Menu
00:00:00.000 : en:Chapter 01
00:12:06.125 : en:Chapter 02
00:22:24.833 : en:Chapter 03
00:34:48.166 : en:Chapter 04
00:47:58.791 : en:Chapter 05
01:01:28.000 : en:Chapter 06
01:11:35.041 : en:Chapter 07
01:25:22.416 : en:Chapter 08
01:35:24.083 : en:Chapter 09
01:46:54.250 : en:Chapter 10
01:59:45.000 : en:Chapter 11
And here’s one that does not flash:
General
Unique ID : 99550212414625253547756863703204014189 (0x4AE4AC6AE2B1BCCBCF86DD411CA8A86D)
Complete name : /Volumes/54TB RAID A/Blu-ray 4K/Twister (1996) UHD/Twister.mkv
Format : Matroska
Format version : Version 4
File size : 48.7 GiB
Duration : 1 h 53 min
Overall bit rate mode : Variable
Overall bit rate : 61.6 Mb/s
Frame rate : 23.976 FPS
Encoded date : 2024-07-05 03:28:49 UTC
Writing application : mkvmerge v85.0 ('Shame For You') 64-bit
Writing library : libebml v1.4.5 + libmatroska v1.7.1
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : V_MPEGH/ISO/HEVC
Duration : 1 h 53 min
Bit rate : 56.4 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.284
Time code of first frame : 00:59:58:23
Stream size : 44.5 GiB (92%)
Writing library : ATEME Titan File 3.9.7 (4.9.7.0)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : Display P3
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 995 cd/m2
Maximum Frame-Average Light Level : 693 cd/m2
Audio #1
ID : 2
Format : MLP FBA 16-ch
Format/Info : Meridian Lossless Packing FBA with 16-channel presentation
Commercial name : Dolby TrueHD with Dolby Atmos
Codec ID : A_TRUEHD
Duration : 1 h 53 min
Bit rate mode : Variable
Bit rate : 3 571 kb/s
Maximum bit rate : 5 736 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Compression mode : Lossless
Delay relative to video : -1 ms
Stream size : 2.82 GiB (6%)
Language : English
Default : Yes
Forced : No
Number of dynamic objects : 11
Bed channel count : 1 channel
Bed channel configuration : LFE
Audio #2
ID : 3
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 1 h 53 min
Bit rate mode : Constant
Bit rate : 448 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Delay relative to video : -1 ms
Stream size : 362 MiB (1%)
Language : English
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -27 dB
compr : 1.49 dB
dynrng : 1.02 dB
cmixlev : -3.0 dB
surmixlev : -3 dB
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB
Audio #3
ID : 4
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 1 h 53 min
Bit rate mode : Constant
Bit rate : 640 kb/s
Channel(s) : 6 channels
Channel layout : L R C LFE Ls Rs
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 517 MiB (1%)
Language : French
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -27 dB
compr : 1.49 dB
cmixlev : -3.0 dB
surmixlev : -3 dB
mixlevel : 283 dB
roomtyp : 3
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -4.5 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB
Audio #4
ID : 5
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Format settings : Dolby Surround
Codec ID : A_AC3
Duration : 1 h 53 min
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 155 MiB (0%)
Language : Spanish
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -27 dB
compr : 1.49 dB
dsurmod : Dolby Surround encoded
mixlevel : 283 dB
roomtyp : 3
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB
Audio #5
ID : 6
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 1 h 53 min
Bit rate mode : Constant
Bit rate : 192 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 155 MiB (0%)
Title : Commentary by director Jan de Bont and special effects supervisor Stefen Fangmeier
Language : English
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -27 dB
compr : 1.49 dB
dsurmod : Not Dolby Surround encoded
mixlevel : 283 dB
roomtyp : 3
ltrtcmixlev : -3.0 dB
ltrtsurmixlev : -3.0 dB
lorocmixlev : -3.0 dB
lorosurmixlev : -3.0 dB
dialnorm_Average : -27 dB
dialnorm_Minimum : -27 dB
dialnorm_Maximum : -27 dB
Text #1
ID : 7
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 1 h 44 min
Bit rate : 36.7 kb/s
Frame rate : 0.473 FPS
Count of elements : 2970
Stream size : 27.5 MiB (0%)
Language : English
Default : Yes
Forced : No
Text #2
ID : 8
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 1 h 44 min
Bit rate : 24.7 kb/s
Frame rate : 0.418 FPS
Count of elements : 2624
Stream size : 18.5 MiB (0%)
Language : French
Default : Yes
Forced : No
Text #3
ID : 9
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 1 h 44 min
Bit rate : 27.4 kb/s
Frame rate : 0.450 FPS
Count of elements : 2824
Stream size : 20.5 MiB (0%)
Language : Spanish
Default : Yes
Forced : No
Text #4
ID : 10
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 38 min 31 s
Bit rate : 268 b/s
Frame rate : 0.003 FPS
Count of elements : 8
Stream size : 75.7 KiB (0%)
Language : French
Default : Yes
Forced : No
Text #5
ID : 11
Format : PGS
Codec ID : S_HDMV/PGS
Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs
Duration : 37 min 51 s
Bit rate : 118 b/s
Frame rate : 0.002 FPS
Count of elements : 4
Stream size : 32.8 KiB (0%)
Language : Spanish
Default : Yes
Forced : No
Menu
00:00:00.000 : Cap鱈tulo 01
00:04:45.660 : Cap鱈tulo 02
00:05:41.967 : Cap鱈tulo 03
00:12:46.391 : Cap鱈tulo 04
00:15:46.904 : Cap鱈tulo 05
00:18:53.716 : Cap鱈tulo 06
00:21:08.642 : Cap鱈tulo 07
00:26:42.267 : Cap鱈tulo 08
00:29:02.074 : Cap鱈tulo 09
00:31:43.652 : Cap鱈tulo 10
00:33:24.753 : Cap鱈tulo 11
00:35:55.987 : Cap鱈tulo 12
00:41:33.866 : Cap鱈tulo 13
00:45:08.289 : Cap鱈tulo 14
00:49:33.429 : Cap鱈tulo 15
00:53:07.351 : Cap鱈tulo 16
00:56:36.560 : Cap鱈tulo 17
00:59:05.625 : Cap鱈tulo 18
01:02:11.895 : Cap鱈tulo 19
01:05:14.702 : Cap鱈tulo 20
01:11:28.242 : Cap鱈tulo 21
01:15:11.966 : Cap鱈tulo 22
01:18:14.148 : Cap鱈tulo 23
01:22:44.668 : Cap鱈tulo 24
01:24:32.818 : Cap鱈tulo 25
01:27:52.392 : Cap鱈tulo 26
01:30:08.528 : Cap鱈tulo 27
01:31:18.598 : Cap鱈tulo 28
01:34:44.304 : Cap鱈tulo 29
01:36:13.893 : Cap鱈tulo 30
01:38:49.423 : Cap鱈tulo 31
01:41:07.895 : Cap鱈tulo 32
01:43:27.701 : Cap鱈tulo 33
01:45:36.580 : Cap鱈tulo 34
01:53:03.819 : Cap鱈tulo 35