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chulbert24
User level: 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

1 reply

Matti Haveri
User level: Level 7 (22,314 points)

Oct 27, 2026 3:01 AM in response to chulbert24

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

Originally posted at discussions.apple.com/thread/256383830