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How to Play MP4 Videos on Mac OS X (macOS Sierra Included)


MP4 video format is greatly in use to save video data from different devices like iPhone, digital camera, Handycam, etc. It is an official name for MPEG-4 video format. Most of the gadgets use this format (.mp4) to save recorded video clips and it plays well on different multimedia players on Mac with ease. But sometimes, Mac may deny playing MP4 videos on it. In this article, we will quickly walk you through how to play MP4 on Mac OS X including macOS Sierra without hassle.

Why Cannot Play MP4 Video Files on Mac

- Absence or incorrect installation of right Codec on Mac to play MP4 video
- Faulty media player on Mac in which MP4 file is tried to play
- Abrupt termination of media player or Mac system while playing any MP4 file may damage the file and make it unplayable when played next time
- Incomplete conversion or compression of MP4 video files

How to Fix MP4 Not Playing on Mac OS X

Method 1. Download Best MP4 Players for Mac

QuickTime is a multimedia framework developed by Apple Inc., capable of handling various formats of digital video (MP4, MOV), media clips, sound, text, animation, music, and interactive panoramic images. If the default QuickTime can't play your MP4 videos, try an alternative.

VideoLAN VLC Media Player

VLC player supports all the video and audio streams including MP4. You need not to install any codecs or filters to play .mp4 files.

Plex Media Center for OS X

Plex (a.k.a. Plexapp), is an open source media center for Intel-based Apple Macintosh computers, it has a 10-foot user interface design for the living-room TV. It supports a bunch of video formats including MP4.

Method 2. Repair Broken MP4 Video Files

If MP4 video files are corrupt, Mac may not play such videos in any of the multimedia players. In this case, you'd better download and install a video repair software to fix unreadable MP4 files on Mac OS X.

Method 3. Convert MP4 to Mac OS X More Compatible Format

As we know, MP4 is a container format. A part of MP4 files doesn't play on Mac may due to codec issues sometimes. To make the most of your MP4 video files, you'd better convert MP4 files to Mac or any other device, editing software, and media player friendly formats. To do it, you can try Brorsoft Video Converter for Mac.

It enables you to convert MP4 to MOV for playing on Mac OS X(macOS Sierra) easily without any quality loss. Besides, it lets you directly convert MP4 videos to iPhone, iPad, Apple TV, iTunes, Final Cut Pro, iMovie or many some other media devices, video editing programs friendly format with the best quality. What's more, this Mac video converter is built with a video editor, which lets you touch up the video as you like.

Download the best MP4 Converter for Mac:


Step 1. Import MP4 files from "Add Video"


Step 2. Choose a proper output format for your source MP4 file in the output format list.


Step 3. Perform MP4 conversion by clicking on "Convert" in bottom right corner of main UI.

When the conversion is completed, you can either play your MP4 movie on your Mac, or transfer the output file to your iPad, iPod, iPhone to enjoy anytime and anywhere.

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