Latest post Fri, May 22 2020 10:26 PM by marluc. 0 replies.
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  • Fri, May 22 2020 10:26 PM

    • marluc
    • Top 500 Contributor
    • Joined on Thu, Oct 13 2005
    • New York State
    • Posts 389
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    AVdn file incompatible with Quick Time??

    Dear fellow Avid users,

    On May 4, 2020 I upgraded Media Composer to version first upgrade since MC version 7.07.  I am running it on an iMac with High Sierra OS 10.13.6.  All files that I have previously exported as AVdn, especially large ones of, say, an average 50 GB, will not open on my disktop anymore. Sometimes QT tries to convert them to tiny mp4 files unless I stop it. 

    My goal is to export archival files for preservation, and I find that I can do 10-bit uncompressed as Pro Res 422 at large sizes with good results.

    However, my question is what to do with the files I previously exported as archival AVdn but which I cannot open anymore. In some cases they are years old, and I cannot get back to the original master files or the drives they were on.

    This may be an old issue for Avid; I have been off the forum for a few years. So, forgive me if this has been dealt with before but please refer me to the correct answers.

    Many thanks,


    DESKTOP: 27" iMac/3.5GHz Quad Core i7/ 32 GB 1600 MHz DDR3, 8GB/1TBFlash Storage/NVIDIA GTX 780M 4GB, running OS X 10.13.6 and MC Ultimate version... [view my complete system specs]
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