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  1. I have 2 separate .mp4 files with h264 video @ 720p inside.

    I've joined them together with YAMB and they play perfectly fine on my PC.

    But when I upload the file to YT, YT only recognizes the first part. It stop plays exactly at the point where the first joined file ends.

    How can I fix this without having to re-encode them?
    Driber.net webmaster
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  2. Member bat999's Avatar
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    Originally Posted by Driber View Post

    I've joined them together with YAMB and they play perfectly fine on my PC.
    ...
    How can I fix this without having to re-encode them?
    Check the joined file with MediaInfo first.
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  3. General
    CompleteName : L:\xxxxxx\join_test1.mp4
    Format : MPEG-4
    Format_Profile : Base Media
    CodecID : isom
    FileSize/String : 8.54 MiB
    Duration/String : 4s 170ms
    OverallBitRate_Mode/String : VBR
    OverallBitRate/String : 17.2 Mbps
    Encoded_Date : UTC 2012-06-27 13:04:09
    Tagged_Date : UTC 2012-06-27 13:04:09

    Video
    ID/String : 2
    Format : AVC
    Format/Info : Advanced Video Codec
    Format_Profile : Baseline@L3.1
    Format_Settings_CABAC/String : No
    Format_Settings_RefFrames/String : 2 frame2
    MuxingMode : Container profile=Baseline@0.0
    CodecID : avc1
    CodecID/Info : Advanced Video Coding
    Duration/String : 4s 170ms
    Source_Duration/String : 7s 508ms
    BitRate_Mode/String : VBR
    BitRate/String : 10.0 Mbps
    BitRate_Maximum/String : 14.0 Mbps
    Width/String : 1280 pixel3
    Height/String : 720 pixel3
    DisplayAspectRatio/String : 16:9
    FrameRate_Mode/String : CFR
    FrameRate/String : 29.970 fps3
    ColorSpace : YUV
    ChromaSubsampling : 4:2:0
    BitDepth/String : 8 bit3
    ScanType/String : Progressive
    Bits-(Pixel*Frame) : 0.363
    StreamSize/String : 4.99 MiB (58%)
    Source_StreamSize/String : 8.36 MiB (98%)
    Language/String : en
    Encoded_Date : UTC 2012-06-23 13:55:13
    Tagged_Date : UTC 2012-06-27 13:04:10

    Audio
    ID/String : 1
    Format : AAC
    Format/Info : Advanced Audio Codec
    Format_Profile : LC
    CodecID : 40
    Duration/String : 4s 138ms
    Source_Duration/String : 7s 445ms
    BitRate_Mode/String : CBR
    BitRate/String : 192 Kbps
    Channel(s)/String : 2 channel2
    ChannelPositions : Front: L R
    SamplingRate/String : 48.0 KHz
    Compression_Mode/String : Lossy
    Video_Delay/String : -10ms
    StreamSize/String : 97.0 KiB (1%)
    Source_StreamSize/String : 175 KiB (2%)
    Language/String : en
    Encoded_Date : UTC 2012-06-23 13:55:13
    Tagged_Date : UTC 2012-06-27 13:04:10
    Driber.net webmaster
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  4. Member bat999's Avatar
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    Location
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    Hi
    MediaInfo shows "Duration/String : 4s 170ms"

    Maybe YAMB has botched the job.

    Try joining with different software.
    Such as "My MP4Box GUI"
    From here ---> http://my-mp4box-gui.zymichost.com/
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  5. Yeah I guess it did botch the job.

    I re-created the mp4 in XMedia Recode (direct video and audio copy) and that fixed it!
    Driber.net webmaster
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