Error "The file has an unsupported compression type." while importing video of codecs h.265

New Here ,
Sep 16, 2020 Sep 16, 2020

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Platform: Windows 10 Home

Hardware: Intel i7 6gen, geforce 1070

Product: Adobe Premiere Pro 2020 (14.4)

Video codecs (as indicated by VLC codecs information): MPEG-H Part2/HEVC (H.265) (hevc)

Video source: Hikvision dashcam


Hello, I have encountered a problem that is blocking me from doing any work. I am attempting to put together a video collected from my dashcam. However, I am failing on import for with the error message: "The file has an unsupported compression type."


I have attempted the steps on, which does not resolve the problems for me (1st method: doesn't work. 2nd method: cannot find AVCHD directory, 3rd method: there is no "C:\Users\Public\Public Documents\AdobeInstalledCodecs"directory to begin with.).


I have also tried a variety of community methods (including those listed on, none of which really helps my case.


  1. Video conversion by 3rd party software prior to import: handbrake does not have CUDA acceleration and is extremely slow with the CPU I have, VLC conversion somehow clips the beginning of the video and end of the audio, and has already caused me having to ditch the work I have done. Plus, there really should be an Adobe native solution, right?
  2. Changing extension into .mts, .m4a, etc.: file now loads, but only the audio track is available.
  3. Per community methods, it sounds like a prompt should show up and alert me to install HEVC codecs, but one never pops for me. I am NOT using a trial version, NOT using a version before 12.01, and HAVE tried reinstalling Premiere Pro from Creative Cloud Desktop.


My project is of a lower importance, has no deadline, but is time consuming so I do want to take the time to get things "right" instead of using tricks and workarounds. Can somebody helpfully provide me with some thoughts on how to resolve the issue?









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