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chulbert24 Author

Level 1

4 points

Unable to open a .mov file

I have a macOS Big Sur MacBook Pro and i can’t open a .mov file with QuickTime

Posted on Oct 27, 2026 2:37 AM

Top-ranking reply

Matti Haveri

Level 7

22,314 points

Posted on Oct 27, 2026 3:01 AM

Obviously it has some obsolete or incompatible codec which current QuickTime Player does not support.

You can check the codecs with MediaInfo or Invisor and post the codec info here for us to evaluate:

https://mediaarea.net/en/MediaInfo

https://apps.apple.com/fi/app/invisor-media-file-inspector/id442947586?mt=12

https://www.invisorapp.com

Or, IINA and VLC should have no issues with playing any decent new or old codec.

https://iina.io

https://www.videolan.org

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