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Activity Forums Avid Media Composer Problem linking mp4 to AVID


  • Robert Ober

    April 28, 2022 at 11:36 pm

    mp4 is a container, not a codec. Do you know what is the codec?

    It’s possible it is a codec that is not supported. You can look at the file with Invisor.

    Let us know,


  • Guy Crossman

    April 29, 2022 at 7:34 am

    Hi Robert,

    The files are Handbrake exports as they started life as QT, and I converted them.

    Here is what Invisor made of them.

    I’m sure I’ve done this before, can’t work out why it’s suddenly a problem

    Composer 2021.12.0 on Catalina10.15.7

    Thanks Guy

  • Chris Bové

    April 29, 2022 at 12:08 pm

    Hello. I think the core of the issue is the Dolby AC-3 formatting that is being created. Can you eliminate that in the app you are using to create the media?

  • Guy Crossman

    April 29, 2022 at 1:23 pm

    Ah, that’s the AC-3 bit I believe. Thanks, I’ll turn it off in Handbrake. Cheers Guy

  • Boston Cainfra

    May 5, 2023 at 3:25 am

    Avid Media Composer typically does not natively support the MP4 format, and requires a third-party plugin such as the Avid Media Access (AMA) plugin or the Universal Media Engine (UME) to link and access MP4 files.<div>
    </div><div>If you’re unable to change the plugin to UME, it could be due to a few reasons such as the plugin not being installed on your system or the media files being incompatible.</div><div>
    </div><div>Here are a few troubleshooting steps you can try:</div><div>
    </div><div>Check if the UME plugin is installed on your system. You can do this by going to the Avid Media Composer settings menu and checking the “AMA” tab to see if UME is listed as an option.</div><div>
    </div><div>If UME is not installed, download and install it from the Avid website or from the Avid Link application.</div><div>
    </div><div>Check if the MP4 files are compatible with Avid Media Composer. Some MP4 files may have codecs that are not compatible with Avid Media Composer.</div><div>
    </div><div>Try transcoding the MP4 files to a format that is compatible with Avid Media Composer using a third-party software such as Adobe Media Encoder or Handbrake.</div><div>
    </div><div>If all else fails, you can try importing the MP4 files into Avid Media Composer using the import function. However, this will create Avid MXF media files and may result in larger file sizes</div>

  • Guy Crossman

    May 5, 2023 at 10:29 am

    Thanks Boston, I will check the plug in Cheers Guy

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