You can open double windows if you want to actually view the playlist. No codec packs are needed and it’ s completely free. You can also use it to play DVDs, CDs, VCDs, and various streaming protocols. Fortunately, there are many QuickTime player alternative out there that can assist you to play MP4 files with ease.Ī simple and open source cross-platform best media player for Mac to playback various type of video file. Solution 2: Find an alternative MP4 playerĪlthough QuickTime is Apple’s flagship player, however, it can only handle very limited file formats. It uses H.264 to convert other older or third-party media formats.

It uses Apple Prores to convert legacy formats used in video workflows, such as those encoded with the Animation codec. Make sure your QuickTime Player is up to date. QuikTime player converts certain files before playing them – QuickTime Player version 10 should convert the video to a format it can play. Apple support recommended to reinstall macOS but I suppose it doesn’t help.įor those people who have the same issue when playing MP4 video with QuickTime player after upgrading your Mac computer to the new macOS Sierra, you can fix the problem with the following solutions: Solution 1: Convert unsupported MP4 directly with QuickTime player VLC player can play the MP4 file but QT doesn’t. Even my iMac with Sierra can play it but not my MacBook. I have the same problem on MacBook Air HD5000. Codec of video is h.264 and sound AAC. Does anybody have the same problem or have any ideas how to fix it? Hi, I found that QuickTime player doesn’t play mp4 videos after I updated macOS Sierra. Macos Sierra QuickTime no video just sound

How do i play mp4 on mac