Repair MP4

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Repair Bad MP4

The MP4 files are MPEG – 4 video files, which is generally used to store multimedia files such as audio files, video files and so on. These MP4 files occupies less space on your system hard disk and has better audio quality compared to that of MP3 files. Sometimes while playing MP4 files on your system, you may get an error message stating that you have a “Bad Atom” or “Bad Public Movie Atom”. Atoms are components of MP4 files, which when all are added together become one MP4 file, that you can play in your system. But when you copy a MP4 files from one location to another, the internal atom files can be corrupted or move out of sequence leading to damaged or bad MP4 files. These damaged MP4 files fails to play. So to fix bad MP4 files you need to make use of relevant MP4 repair software.

The file extension for MP4 audio files is .m4a. MP4 file format is supported by a number of multimedia gadgets such as digital camera, camcorder, PSP, cell phones etc. Since MP4 is compatible and supports the latest technologies, it has become one of the general audio formats in smart phones. MP4 files are preferred by almost everyone across the globe, but like any other file format, MP4 audio file also gets corrupted or bad under many circumstances. There are many scenarios that are responsible for MP4 file corruption.

Some common scenarios leading for corruption of MP4 files are mentioned below:

  • Converting File format : You can easily convert or change the file formats by using some reliable third party software. But if anything goes wrong or if the conversion process is interrupted in between due to errors, then it leads to corruption of MP4 files.
  • Corruption due to Virus Attack: Virus such as malware, spyware can cause much damage to the MP4 files. Some part of the MP4 files get damaged when it gets infected by virus making the media file unplayable or corrupt. However, you can make use of this simple user interface to repair choppy MP4 video file due to severe virus infection with great ease. To know more information, click here http://www.repairmp4.com/choppy-mp4-video.html.
  • Abrupt system shut down: If your computer shuts down abnormally/unexpectedly, when MP4 file is still in playing mode can corrupt the header and file structure of MP4 file, which makes MP4 file unreadable.
  • Sudden removal of storage device: Interruption caused when MP4 files are getting transferred from one storage device to another can severely damage MP4 file. Forcibly ejecting the storage device from the system and sudden power outage are some of the causes that are responsible for bad MP4 files

To overcome above mentioned scenarios you need to follow some precautionary measures mentioned below:

  • Always use supportable MP4 player to open or play MP4 files
  • Make use of appropriate method to convert file extensions
  • Keep an updated backup of your favorite  MP4 files
  • Maintain an updated antivirus program to prevent your system from getting infected by viruses

Even after following these precautionary steps, if your MP4 files are getting corrupted and become inaccessible then in that case it is essential for you to use efficient MP4 Repair software so that you can repair corrupted files and fix the problem.


MP4 repair software can easily repair bad MP4 files. It can even fix corrupted, broken MOV, MP4 video files in a few minutes. This tool has automated repair process feature which helps to scan and fix MP4 files after header corruption automatically. Video - avc1, mp4v, mjpeg and Audio – Audio, RAW, mp4a are some of the prominent codecs that is supported by this utility. There are many camcorder brands that are supported by this software are Samsung, Sanyo, Canon, Kodak, Nikon, Casio, Panasonic, Fujifilm etc. Using this tool one can ultimately repair corrupt MP4 files on Mac system without any difficulty.

Procedure to Repair Bad MP4 files:

Step1: Download and Install the demo version MP4 repair software and run it. In the main screen you will be able to upload the corrupted MP4 song that needs to be repaired, you can browse the file by clicking on "Open".

Repair MP4 file - Main Window

Main Screen

Step 2: Once you click on Open button, the software will open corrupted file from the location where it has been stored. After the file gets uploaded, click on "REPAIR" button.

Repair MP4 file - File selection screen

Selection Screen

Step 3: When the Repairing process starts, all the MP4 files which are corrupted or damaged will be repaired.

Repair MP4 file - Repair process screen shot

Repair Processing Screen

Step 4: Once the repair process is over, you can easily preview repaired file by clicking on "Preview repaired file" option.

Repair MP4 file - Final screen shot

Preview Screen

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