After you deleted the preferences, you will need to enter all preferences again in the "iMovie > Preferences".ĭelete the iMovie preferences 5. Keep holding the keys until a panel pops up asking if you want to delete the preferences.Launch iMovie while holding down the Option and Command keys.But it’s the easiest thing to do before you take other more complicated measures. Deleting the iMovie preferences won’t always work. You’re suggested to delete the iMovie preferences. And therefore, the QuickTime Player can’t open the iMovie exported MP4, MOV.
Delete the iMovie preferencesĬorrupted iMovie preferences may cause your iMovie project to become corrupted. Or better yet, recreate the project and share it. In this case, you need to create a new library, transfer your project into it, and then re-sharing the project. Tips: If the iMovie video can’t be imported to a video converter, showing an invalid source, it indicates that the file is fatally corrupted. Go to the General Profiles > select to encode to Mp4 with H.264.
Then open the app and click the "Add Video" button to load the iMovie video. If you try to open the MP4 file, it will say the iMovie file is incompatible with QuickTime. And the final MP4 movie may come with a file size of zero bytes before the rendering completes. After you export the iMovie project, its name will show in Finder immediately. Are there any temporary files next to your final movie? Temporary files mean that your movie is still in the rendering process. Check if there are temporary filesĬheck the final video and make sure the iMovie export is complete.
Export the movie with the Best quality 2. Tips: If the MOV file is too big for you, you can re-encode it into a smaller MP4 using Handbrake or other free video converters. Note that the file size of the MOV file will be larger than MP4, but the quality will also be better. Then you should be able to open the iMovie MOV file in QuickTime Player without problems. That will save your iMovie project in MOV instead of MP4 (exports at all other quality settings will generate a smaller. When you export the movie from iMovie, select Best (ProRes) under Quality in the share dialogue box. If the iMovie MP4 output is not compatible with QuickTime Player, you can save your movie project in another format. What to do when iMovie file is not compatible with QuickTime?
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