How to Repair MP4 Files

Updated July 19, 2017

MP4, also known as MPEG-4 Part 14, is a type of file containment format used to store music and videos. If you can't play an MP4 file in your media player, the file may be corrupted. If this is the case, you can repair the corrupted MP4 file by using the third-party recovery applications Digital Media Recovery or All Media Fixer.

Download and install "Digital Media Recovery" (see Resources).

Click "Start," click "All Programs," then click "Disk Doctor's Digital Media Recovery" to open the program.

Check the box next to the hard drive where the corrupt MP4 files are located and click "Next." Select the MP4 file format on the following screen and click "Next." "Digital Media Recovery" will detect and repair any corrupted MP4 files automatically.

Download and install "All Media Fixer" (see Resources).

Click "Start," click "All Programs," then click "All Media Fixer" to open the program.

Click the "Add Media File" button in the "All Media Fixer" user interface. Select the broken MP4. Click the "Start Check and Fix" button to repair the corrupted MP4 file.

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About the Author

As an ardent tech fan, Andrew Meer loves writing about the latest in computer hardware and software. Since 2006, he has worked as a level designer and programmer for various video game companies. Meer holds a Bachelor of Science in game and simulation programming from DeVry University, California.