Select your MP4 video using add input files or streams option and click on the Convert or Save button. Step 2: Open VLC, go to Media, and select Convert or Save option. Choose Always Fix option for Damaged or incomplete AVI file and open the MP4 file that won’t open on Mac. Then, open VLC player, go to Preferences and select Input/Codecs option. Step 1: First, create a copy of your MP4 video file and change its file extension to. Repair MP4 Files on Mac Using VLC Player: However, no need to get disappointed so much because the VLC player can repair your MP4 files. A user may get worried thinking how to fix when Mac is not playing MP4 videos. If MP4 video files are corrupt in these instances, Mac may not play MP4 files in any of the multimedia players. Most of the gadgets use this format (.mp4) to save recorded video clips and it plays well I different multimedia players on Mac with ease.

It is an official name for MPEG-4 video format. The MP4 file format is greatly in use to save video data from different devices like iPhone, digital camera, Handycam, etc. This kind of situation might be faced by many Mac users who wrongly handle MP4 videos. Can anyone suggest me a relevant solution to fix Mac not playing MP4 file issue without damaging the files.” Now, as I don't carry any backup copy I am worried what should be done with these unplayable video files. Later, I copied these videos to my Macintosh machine and tried to play them in QuickTime player but the video refused to play saying there are some issues with the file.

'I moved all the video clips recorded on iPhone to my friend's laptop and used some video editor to chop unwanted segments.

How to open mp4 file on mac