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How to Fix the MP4 Can't Play on Mac Issue
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![Fix "Mac No Output Device Found" Error [9 Proven Ways]](https://images.wondershare.com/repairit/article/no-output-device-2.jpg "Fix \"Mac No Output Device Found\" Error [9 Proven Ways]")
Fix "Mac No Output Device Found" Error [9 Proven Ways]
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![Fixed] MP4 not Playing on Mac – Stellar](https://www.stellarinfo.com/blog/wp-content/uploads/2021/08/Figure-5-Select-Tools-in-VLC-and-then-go-to-Preferences.jpg "Fixed] MP4 not Playing on Mac – Stellar")
Fixed] MP4 not Playing on Mac – Stellar
![QuickTime Not Working on Mac - How to Fix [2024]](https://www.aiseesoft.com/images/solution/quicktime-not-working-on-mac/quicktime-not-working-on-mac.jpg "QuickTime Not Working on Mac - How to Fix [2024]")
QuickTime Not Working on Mac - How to Fix [2024]
Why can I only view a thumbnail preview of my .mp4 video files and not my .mov video files?? My new camera only does .mov and this is frustrating… also, I cannot “
Solved: QuickTime Player Can't Open MP4 (Jan. 2024)
![QuickTime player can't open MP4 on Mac [Solved]](https://www.elmedia-video-player.com/images/upload/elmedia/articles/how-to-steps/install-1@2x.jpg "QuickTime player can't open MP4 on Mac [Solved]")
QuickTime player can't open MP4 on Mac [Solved]
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![Fixed] MP4 not Playing on Mac – Stellar](https://www.stellarinfo.com/blog/wp-content/uploads/2021/08/How-to-fix-mp4-not-playing-on-mac-1.jpg "Fixed] MP4 not Playing on Mac – Stellar")
Fixed] MP4 not Playing on Mac – Stellar
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