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In 2013 I created a blu-ray remux from the original Harry Brown blu-ray. the size of the file is 23.6GB
Yesterday, I saw on the internet a remux of the same movie, but this one is 28GB. How does it make sense, if both files were not re-encoded? both remuxes were taken from the same blur-ay...
the video part of the EPSiLON remux is 25GB while my remux is 23.6GB and that includes all audio as well. so the difference is about 4GB. how? the video bitrate is the same.
The one I saw online:Code:My remux: General Unique ID : 173281167900320573610166008008640781488 (0x825CBD2F7B4B355D804CB222494F5CB0) Complete name : *****\****\Harry.Brown.2009.RemuxOriginalQuality.DTS-HD.mkv Format : Matroska Format version : Version 4 File size : 23.6 GiB Duration : 1 h 42 min Overall bit rate mode : Variable Overall bit rate : 32.9 Mb/s Encoded date : UTC 2013-03-30 09:49:07 Writing application : mkvmerge v6.1.0 ('Old Devil') built on Mar 2 2013 14:32:37 Writing library : libebml v1.3.0 + libmatroska v1.4.0 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings : CABAC / 3 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 3 frames Format settings, GOP : M=4, N=24 Codec ID : V_MPEG4/ISO/AVC Duration : 1 h 42 min Bit rate mode : Variable Maximum bit rate : 35.0 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 23.976 (24000/1001) FPS Standard : NTSC Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Language : English Default : Yes Forced : No Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio ID : 2 Format : DTS XLL Format/Info : Digital Theater Systems Commercial name : DTS-HD Master Audio Codec ID : A_DTS Duration : 1 h 42 min Bit rate mode : Variable 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 Language : English Default : Yes Forced : No Text ID : 3 Format : PGS Muxing mode : zlib Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Language : English Default : Yes Forced : No
Thank you!Code:General Harry.Brown.2009.1080p.BluRay.REMUX.AVC.DTS-HD.MA.5.1-EPSiLON.mkv Format : Matroska Format version : Version 4 File size : 28.0 GiB Duration : 1 h 43 min Overall bit rate mode : Variable Overall bit rate : 38.9 Mb/s Movie name : Harry Brown (2009) Encoded date : UTC 2019-03-31 04:27:40 Writing application : mkvmerge v32.0.0 ('Astral Progressions') 64-bit Writing library : libebml v1.3.7 + libmatroska v1.5.0 IMDB : tt1289406 TMDB : movie/25941 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.1 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Codec ID : V_MPEG4/ISO/AVC Duration : 1 h 43 min Bit rate mode : Variable Bit rate : 35.0 Mb/s Maximum bit rate : 36.0 Mb/s Width : 1 920 pixels Height : 1 080 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 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.703 Stream size : 25.2 GiB (90%) Title : MPEG-4 AVC Video / 34998 kbps / 1080p / 23.976 fps / 16:9 / High Profile 4.1 Language : English Default : Yes Forced : No Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio #1 ID : 2 Format : DTS XLL Format/Info : Digital Theater Systems Commercial name : DTS-HD Master Audio Codec ID : A_DTS Duration : 1 h 43 min Bit rate mode : Variable Bit rate : 3 617 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 : 2.61 GiB (9%) Title : DTS-HD Master Audio / 5.1 / 48 kHz / 3617 kbps / 24-bit Language : English Default : Yes Forced : No Audio #2 ID : 3 Format : AC-3 Format/Info : Audio Coding 3 Commercial name : Dolby Digital Codec ID : A_AC3 Duration : 1 h 43 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 : 142 MiB (0%) Title : Commentary by director Daniel Barber, producer Kris Thykier and actor Michael Caine Language : English Service kind : Complete Main Default : No Forced : No Text #1 ID : 4 Format : PGS Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Duration : 1 h 35 min Bit rate : 21.6 kb/s Count of elements : 1488 Stream size : 14.8 MiB (0%) Language : English Default : No Forced : No Text #2 ID : 5 Format : PGS Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Duration : 1 h 39 min Bit rate : 15.9 kb/s Count of elements : 1684 Stream size : 11.3 MiB (0%) Title : SDH Language : English Default : No Forced : No Text #3 ID : 6 Format : PGS Codec ID : S_HDMV/PGS Codec ID/Info : Picture based subtitle format used on BDs/HD-DVDs Duration : 1 h 39 min Bit rate : 59.3 kb/s Count of elements : 3536 Stream size : 42.1 MiB (0%) Title : Commentary by director Daniel Barber, producer Kris Thykier and actor Michael Caine Language : English Default : No Forced : No Menu 00:00:00.000 : en:Chapter 1 00:06:28.138 : en:Chapter 2 00:12:22.408 : en:Chapter 3 00:17:29.006 : en:Chapter 4 00:26:00.851 : en:Chapter 5 00:31:18.335 : en:Chapter 6 00:36:02.410 : en:Chapter 7 00:40:39.896 : en:Chapter 8 00:48:01.295 : en:Chapter 9 00:52:07.249 : en:Chapter 10 00:58:26.628 : en:Chapter 11 01:05:29.759 : en:Chapter 12 01:13:43.628 : en:Chapter 13 01:20:50.512 : en:Chapter 14 01:25:44.264 : en:Chapter 15 01:31:15.553 : en:Chapter 16
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The streams are different. More bitrate for the videostream and more streams in the second movie.
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bitrate is identical it's the same blu-ray...Originally Posted by ProWo
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It says 1hr42min in #1 and 1hr43min in #2. 1 minute could be the difference. Plus, there are slight differences in bitrate (35Mbps max vs 36). And the muxer writing library is different, so there would likely be different amount of overhead.
Scott -
Hi Scott,Originally Posted by Cornucopia
That's 1 min difference... it cannot justify 4GB difference.
As for the bitrate they are the same....
"Bit rate mode : Variable
Bit rate : 35.0 Mb/s
Maximum bit rate : 36.0 Mb/s"
bitrate cannot be different it is the same blu-ray and both were not re-encoded.
The writing library can affect the size that much?
I guess both will look the same to the eye?
Thanks! -
Either the discs they were ripped from WERE slightly different discs, encoded differently, or one of them was re-encoded, post-rip. Look at the CABAC - one says ref 4 frames while the other says ref 3 frames. That CANNOT change just because of a simple remux; it is an encoding setting.
Scott -
"one says ref 4 frames while the other says ref 3 frames"Originally Posted by Cornucopia
Does it mean that the one with ref 4 frames will look better? (it's larger in size) -
No, more ref frames doesn't mean quality is better. Just take the one that looks best.
1 minute difference is not the thing here.Originally Posted by goveg
Look at the overall bitrates for the whole mkv at the top of each report.
Overall bitrates differ by (38.9 - 32.9) = 6 mbit/sec.
With 1h 42min (6120 sec) runtime this will will yield (6 x 6120) : (8 x 1024) = about 4.48 GB difference in my book.Last edited by Ennio; 15th Aug 2022 at 10:59.
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The one you've found is a close reencode and not a remux
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If I look at the video of the first one, the Maximum bit rate is 35.0 Mb/sOriginally Posted by Ennio
No, more ref frames doesn't mean quality is better. Just take the one that looks best.
1 minute difference is not the thing here.Originally Posted by goveg
Look at the overall bitrates for the whole mkv at the top of each report.
Overall bitrates differ by (38.9 - 32.9) = 6 mbit/sec.
With 1h 42min (6120 sec) runtime this will will yield (6 x 6120) : (8 x 1024) = about 4.48 GB difference in my book.
Moving to the second one, the maximum bit rate is 36.0 Mb/s
Both have the same lossless audio track (the second21 one also has a lossy but that is only 142 MB lol -
Do you mean the first one that w?Originally Posted by s-mp
I remuxed it myself full a full blu-ray, years ago... -
Maximum bitrate is something different than average bitrate.Originally Posted by goveg
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