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Viewing downloaded videos

Is the viewer only for playing back video directly from the microSD card? I downloaded some video from the dashcam onto my desktop computer (they transfer as *.mp4 files), but the viewer software does not recognize them. Is there a way to transfer video and play it back from a desktop or laptop computer, without physically removing the microSD card from the dashcam?

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    Smithb

    The Viewer should work fine with your downloaded videos. I do this all the time. What process did you use to transfer the files to your PC?

    If you double-click on an mp4 file in Explorer to play with one of the built-in video apps on Windows, what happens? Maybe the file got corrupted when you copied it.

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    Copwriter

    Lower-quality files play normally, but without the map data, of course. The high-res files play very slowly and with lots of jerking and dropped frames. I transferred the files by first saving them to internal memory on my phone, then copying them to a cloud drive. I downloaded the files from the cloud drive to my desktop machine. 

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    Smithb

    Curious. I do know that the "caching" of the video files read into the viewer isn't great. But it does try. Normally the symptoms you mention indicate a really slow hard drive that can't keep up. What version of the Viewer are you using? And try a non-BV video player and see if it's better. That'll eliminate suspects.

    I, unfortunately, upgraded my PC and video card, and now I have the old crashing problem back. :-(

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    Copwriter

    I extracted the microSD card from the dashcam (which was a lot more difficult than I thought it would be) and tried viewing the recorded videos in the BV viewer on my PC. The videos wouldn't play, in the BV viewer or in two other video players. I tried this with both my reasonably fast desktop PC and a faster, graphically-optimized gaming PC. Clearly, I do not have a computer that is capable of playing back 4K video. I have reformatted the microSD card to record in HD, as opposed to 4K. This is a disappointment, as I bought the higher-end dashcam for the better video quality.

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    Smithb

    You mention 4K, which presumes you're using the 900S. I'd recommend you look through the dashcam.com threads in this section:
    https://dashcamtalk.com/forum/forums/dr900s-2ch.255/

    The 4K videos may be in H.265 format (aka HEVC), which require some "beef" to actually play smoothly.

    This thread in particular may be helpful (though perhaps not in a good way):
    https://dashcamtalk.com/forum/threads/not-using-h-265-codec-again.36841/

    I'm a 750S owner myself, but apparently you can set the camera to record in the more traditional H.264 format. My understanding is the 4K quality is close, but the file sizes will be bigger (so fewer recordings on the card). But more compatible with the viewers.

    Brad.

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    Copwriter

    I tried downloading a couple of the H.265-capable players, but didn't have any better luck than with the BV viewer or VLC Media Player. I will try a reset to record in 4K H.264 format and see if that works any better. The file size is less of a concern than the video resolution. Thanks for your help. 

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    Copwriter

    Here is a screen grab of what the BV Viewer looks like when trying to play back the video. 

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