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  1. Hello. Yesterday i downloaded Blu-Ray movie. This Blu-Ray made from UHD 4K. Quality more better like license blu-ray. How make this downscale without loss quality?

    Ouput file blu-ray from 4K:

    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L4.1
    Format settings : CABAC / 2 Ref Frames
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Codec ID : V_MPEG4/ISO/AVC
    Duration : 2 h 5 min
    Bit rate mode : Variable
    Bit rate : 26.9 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) : 0.541
    Stream size : 23.6 GiB (77%)
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  2. I'm a Super Moderator johns0's Avatar
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    What movie are you trying to downscale?
    I think,therefore i am a hamster.
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  3. It doesn't matter. I have different movies. I want to know how this guy make release. How convert 4K to Blu-ray better that license disk.
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  4. Member
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    Try using dvdfab. It can convert 4K to blue ray
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  5. Yes. DVDFab convert 4k to blu ray but this use codec x264 and h 265. On blu-ray what i downloaded i think have h264 codec not x264 because i dont see at mediainfo x264 encode setting
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  6. Member netmask56's Avatar
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    A couple of quotes - google search


    "Better compression" means better quality at the same size as those other codecs, smaller size with the same quality, or something in between. x264 is an open source h.264 encoder. h.264 was worked on jointly by ITU & MPEG (so aka MPEG 4-part10 as well as AVC and also JVT "joint video team").

    x264 is a free software library developed by VideoLAN for encoding video streams into the H.264/MPEG-4 AVC format. It is released under the terms of the GNU General Public License.

    https://www.videolan.org/developers/x264.html
    BeyonWiz T3 PVR ~ Popcorn A-500 ~ Samsung ES8000 65" LED TV ~ Windows 7 64bit ~ Yamaha RX-A1070 ~ QnapTS851-4G
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  7. Member
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    Memphis TN, US
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    Originally Posted by LoD View Post
    Yes. DVDFab convert 4k to blu ray but this use codec x264 and h 265. On blu-ray what i downloaded i think have h264 codec not x264 because i dont see at mediainfo x264 encode setting
    To repeat:
    x264 is an h.264 encoder. h.264 is the codec.
    h.265 is not valid for BluRay. h.265 is UHD only.
    https://www.videohelp.com/hd#tech
    Last edited by LMotlow; 22nd Jun 2018 at 14:25.
    - My sister Ann's brother
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  8. Ok. Why this rip is not present information like a Writing library and Encoding settings x264?
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  9. Such metadata is optional. Many files simply don't have them.
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  10. Not every encoder puts that information in the video stream. It can also be removed if you don't want it.

    x264 is generally considered one of the best h.264 encoders in terms of visual quality per bitrate.
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