Convert media files like MP4 to any popular video format. Upload videos at one time and convert them at once. Customize the output MP4 file with multiple settings. You can customize the output MP4 files with various settings. It allows you to convert MP4 files to MOV format which is supported to play on QuickTime. When you encounter the situation that an MP4 file not playing on Mac, then Apeaksoft Free Online Video Converter is strongly recommended. Part 2: How to Play MP4 on Mac with Apeaksoft Free Online Video Converter In that case, you can choose a professional video converter tool. To settle the problem that the MP4 video file can't play on Mac, you can convert your MP4 file into a playable format so that QuickTime can recognize it. That is mainly because your MP4 video file has a codec, or your target MP4 file has been encrypted. Under this circumstance, you may receive the message that 'the movie could not be opened' sometimes.

However, there are some MP4 videos that can't be recognized by QuickTime. Part 1: Why Can't You Play MP4 Video Files on Mac with QuickTimeĪs Apple's default media player, QuickTime can provide you the easiest way to play MP4 video files on Mac because it is part of the operating system. Part 4: FAQs about How to Play MP4 on Mac.Part 3: How to Play MP4 on Mac with Video Converter Ultimate.Part 2: How to Play MP4 on Mac with Free Online Video Converter.Part 1: Why Can't You Play MP4 Video Files on Mac with QuickTime.Please read the following contents carefully. Why does this happen? What should you do? Here are the possible reasons as well as methods which will greatly help you with that issue. When you play an MP4 video file on your MacBook, there pops up a prompt reminding that 'This file contains a media which isn't compatible with QuickTime Player'.

Can you open mp4 on mac