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  1. I downloaded two mkv videos fromYoutube in 4K using 4kVideoDownloader, as ClipGrab couldn't do them, but now I can't convert those files or import them into any editing software, even though VLC will play them fine. Can anyone see what is wrong with the files?

    https://www.youtube.com/watch?v=BwBr8Uk1Vwg
    https://www.youtube.com/watch?v=D64hOox7WJI

    (link here to the files I make using 4K video Downloader): https://wetransfer.com/downloads/0a4b834447a5a35f3e70332349ffcbe720191128152811/e14d93...8152811/687c7d

    Would anyone be able to help me in finding a way to downloading these as a 4k mp4 (or anything FCPX can handle) file at highest settings?

    Thanks!
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  2. There's nothing wrong with the files. I used youtube-dl to downloaded the 4K vp9 video and 160 Kbps opus audio in a webm file and was able to converted with VirtualDub2, ffmpeg, AviSynth, etc.

    Available streams:
    Code:
    >youtube-dl -F https://www.youtube.com/watch?v=BwBr8Uk1Vwg
    [youtube] BwBr8Uk1Vwg: Downloading webpage
    [youtube] BwBr8Uk1Vwg: Downloading video info webpage
    [info] Available formats for BwBr8Uk1Vwg:
    format code  extension  resolution note
    249          webm       audio only tiny    3k , opus @ 50k (48000Hz), 23.45KiB
    250          webm       audio only tiny    3k , opus @ 70k (48000Hz), 23.45KiB
    251          webm       audio only tiny    3k , opus @160k (48000Hz), 23.45KiB
    140          m4a        audio only tiny  130k , m4a_dash container, mp4a.40.2@128k (44100Hz), 829.74KiB
    160          mp4        256x144    144p   49k , avc1.4d400c, 24fps, video only, 244.81KiB
    278          webm       256x144    144p   97k , webm container, vp9, 24fps, video only, 586.92KiB
    133          mp4        426x240    240p  103k , avc1.4d4015, 24fps, video only, 498.69KiB
    242          webm       426x240    240p  165k , vp9, 24fps, video only, 798.50KiB
    134          mp4        640x360    360p  285k , avc1.4d401e, 24fps, video only, 1.43MiB
    243          webm       640x360    360p  319k , vp9, 24fps, video only, 1.58MiB
    244          webm       854x480    480p  571k , vp9, 24fps, video only, 2.91MiB
    135          mp4        854x480    480p  599k , avc1.4d401e, 24fps, video only, 3.03MiB
    136          mp4        1280x720   720p 1287k , avc1.4d401f, 24fps, video only, 6.42MiB
    247          webm       1280x720   720p 1367k , vp9, 24fps, video only, 7.11MiB
    137          mp4        1920x1080  1080p 2464k , avc1.640028, 24fps, video only, 12.50MiB
    248          webm       1920x1080  1080p 2592k , vp9, 24fps, video only, 14.07MiB
    271          webm       2560x1440  1440p 8179k , vp9, 24fps, video only, 45.55MiB
    313          webm       3840x2160  2160p 17634k , vp9, 24fps, video only, 108.16MiB
    43           webm       640x360    360p , vp8.0, vorbis@128k, 4.07MiB
    18           mp4        640x360    360p  529k , avc1.42001E, mp4a.40.2@ 96k (44100Hz), 3.31MiB
    22           mp4        1280x720   720p 1157k , avc1.64001F, mp4a.40.2@192k (44100Hz) (best)
    youtube-dl download command:
    Code:
    youtube-dl -f 313+251 https://www.youtube.com/watch?v=BwBr8Uk1Vwg
    ffmpeg conversion to h.264+aac in mp4:
    Code:
    ffmpeg -i Drone.webm Drone.mp4
    AviSynth script to open the video and audio (the audio was silent in this clip):
    Code:
    a = LWLibavAudioSource("Drone.webm") 
    v = LWLibavVideoSource("Drone.webm") 
    AudioDub(v,a)
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  3. Hi, Thanks for this. I'll need to have a sit down and work out this youtube dl program. I tried after readings comments on this board, but got very confused with it being command based.
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  4. There are GUIs for it. I use TVDownloader
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  5. No problem converting the video with XviD4PSP and editing with PowerDirector
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  6. Thanks everyone for their help. Do you know if there any programs for Mac that can download these in 4K?

    Many thanks
    S
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  7. Originally Posted by zizouillette View Post
    thank you!
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