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"Cannot Open" error message when saving Quicktime Recording

I did about 10 recordings and successfully recorded and saved them all except for one. For whatever reason, one of the recordings keeps giving me a "cannot open" message when I try to save it.


The recording is about 45 minutes long, and I was able to start/stop the recording, but when I try to save or export it, it will begin saving with a progress bar, and upon completion, I get the error message "Cannot Open" although it's already open and I'm able to watch and listen to all 45 minutes of the recording.


I was also able to find the temporary unsaved recording in my computer but still cannot save it. How do I save this like I did with the other videos?


I also have more than enough space on my drive to save it. Also tried saving it on an external hard drive but to no avail.

macOS High Sierra (10.13.3), null

Posted on Mar 13, 2018 12:48 PM

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Posted on Mar 13, 2018 3:10 PM

I figured it out! I got the temporary file and copied it to an external hard drive.


1. Search in the magnifying glass in the top right /Users/austin2/Library/Containers/com.apple.QuickTimePlayerX/Data/Library/Autos ave Information/Unsaved QuickTime Player Document.qtpxcomposition

2. Drag that file into a new folder (or external hard drive)

3. Voilà! It should save!



Note the "austin2" part of this would be your username.

1 reply
Question marked as Best reply

Mar 13, 2018 3:10 PM in response to adpatry

I figured it out! I got the temporary file and copied it to an external hard drive.


1. Search in the magnifying glass in the top right /Users/austin2/Library/Containers/com.apple.QuickTimePlayerX/Data/Library/Autos ave Information/Unsaved QuickTime Player Document.qtpxcomposition

2. Drag that file into a new folder (or external hard drive)

3. Voilà! It should save!



Note the "austin2" part of this would be your username.

"Cannot Open" error message when saving Quicktime Recording

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