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    "Lower Security Preferences" opening AVCHD files in Quicktime X
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    Senior Member Jimmy Pierce's Avatar
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    Mar 2009
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    Los Angeles, CA
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    This started happening recently after upgrading OS. When I try to open an AVCHD (subfolder), Quicktime opens, thumbnails of clips appear (as always), but when I select one and click "OK", a message pops up saying to "lower security preferences for Quicktime". I clicked "lower security" or whatever the option was other than "CANCEL", it failed, now I get an unknown error message when I try again. Looking security preferences, don't see what I need to adjust to fix it. I realize I can just right click on the AVCHD folder, go to the STREAM folder, etc or look at them via editing software, I just like the convenience of Quicktime.

    Suggestions or solutions appreciated.

    UPDATE: Found an Apple thread circa 2017, no solution, though.
    https://discussions.apple.com/thread/8110653
    Last edited by Jimmy Pierce; 06-02-2019 at 07:02 PM.


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