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  1. hi,
    what's different beetween this files ?
    1.mp4
    2.mp4
    all browser cant paly it one of them (1.mp4) and just play audio but the other can show in browser(2.mp4)
    please test it in chrome,firefox , ... to play it.
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  2. I can play both in VLC playerif thats any help.
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  3. The files are using different encoders: 1.mp4 uses MPEG-4 Visual and 2.mp4 uses AVC.
    Try these (1.mp4_new.mp4 and 2.mp4_new.mp4 are AVC encoded)

    or in case your player cannot play AVC, try 1.mp4_new_visual.mp4 and 2.mp4_new_visual.mp4, which are encoded as mpeg-4 Visual:
    Image Attached Files
    Last edited by Sharc; 21st Jan 2020 at 12:13.
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  4. Yes, 1.mp4 uses an older MPEG 4 Part 2 codec (ASP, Divx, Xvid), 2.mp4 uses a more advanced MPEG 4 Part 10 codec (AVC, h.264).

    https://en.wikipedia.org/wiki/MPEG-4_Part_2
    https://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

    Keep in mind that MP4 is a container, a logical box that can hold audio and video (and other things) compressed with a variety of codecs. The box has no bearing on the quality of what's inside.
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