.MJ2 File Recovery

Have files been deleted due to a user’s error or software error? Have you formatted a disk by accident and need to know how to recover the files? Read our .MJ2 file recovery guide for Windows, MacOS, Android and IOS in 2024.

MJ2 File Recovery

What is a .MJ2 file?

Video format defined as Motion JPEG 2000 (Part 3); contains a motion sequence of JPEG 2000 images; does not involve inter-frame coding, but instead encodes each frame independently using JPEG 2000 compression.

What Are Common Causes of ".MJ2" Files Lost or Failure?

There can be several common causes for ".MJ2" files to be lost or fail. Some of these causes include:

  1. Accidental deletion: Users may accidentally delete the ".MJ2" files while organizing or cleaning up their storage devices.
  2. File system corruption: Issues with the file system can lead to the corruption or loss of ".MJ2" files. This can occur due to power outages, improper system shutdowns, or hardware failures.
  3. Virus or malware infection: If a system is infected with a virus or malware, it can corrupt or delete ".MJ2" files along with other data on the computer.
  4. Software or hardware issues: Problems with software applications or hardware components can cause ".MJ2" files to become inaccessible or fail. This can include issues with video editing software, media players, or storage devices.
  5. Formatting or partitioning errors: Accidentally formatting the storage device or partition containing ".MJ2" files can result in their loss. Partitioning errors can also lead to the disappearance of these files.
  6. File system conversion: Converting the file system of a storage device can sometimes lead to the loss or failure of ".MJ2" files if not done correctly.
  7. Physical damage or hardware failure: Physical damage to storage devices, such as hard drives or memory cards, can result in the loss of ".MJ2" files. Hardware failures, such as a malfunctioning hard drive, can also lead to data loss.

It is important to regularly backup ".MJ2" files and take necessary precautions to prevent data loss, such as using reliable storage devices, keeping antivirus software up to date, and avoiding accidental deletion or formatting.

How to recover lost ".MJ2" files?

Sometimes while working with a computer, laptop or other stationary or mobile devices, you may encounter various bugs, freezes, hardware or software failures, even in spite of regular updates and junk cleaning. As a result, an important ".MJ2" file may be deleted.

Go to view
🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

By no means should you think that the only way to recover a ".MJ2" file is always to create it once more.

Use programs for recovering ".MJ2" files if a file was lost after accidental or deliberate deleting, formatting the memory card or the internal storage, cleaning the storage device, after a virus attack or a system failure.

Programs to recover ".MJ2" files

Looking for a way to get files back? In cases when files were deleted and they cannot be restored by using standard operating system tools, use Hetman Partition Recovery.

The tool recovers data from any devices, regardless of the cause of data loss.

Follow the directions below:

  1. Download Hetman Partition Recovery, install and start the program.

  2. The program will automatically scan the computer and display all hard disks and removable drives connected to it, as well as physical and local disks.

    File Recovery Software
  3. Double-click on the disk from which you need to recover ".MJ2" files, and select analysis type.

    Hetman Partition Recovery - Analysis Type
  4. When the scanning is over, you will be shown the files for recovery.

    Hetman Partition Recovery - Files that Can be Restored
  5. To find a file you need, use the program’s interface to open the folder it was deleted from, or go to the folder "Content-Aware Analysis" and select the required file type.

    Hetman Partition Recovery - Deep Scan
  6. Select the files you have been looking for and click "Recovery".

    File Recovery Software - Files List for Recovery
  7. Choose one of the methods for saving the files and recover them.

    Saving recovered files in Hetman Partition Recovery

How to open file with ".MJ2" extension?

Looking for how to open a stereo motion JPEG 2000 Video Clip image file file?

Programs that open ".MJ2" files

Adobe Premiere Pro with Main Concept plugin Adobe Premiere Pro with Main Concept plugin
Adobe Premiere Pro with Main Concept plugin Adobe Premiere Pro with Main Concept plugin

Additional Information

  • File type: Motion JPEG 2000 Video Clip

  • File extension: .MJ2

  • Developer: N/A

  • Category: Video Files

  • Format: N/A


We will be happy to answer your questions!

Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 14:33 #
    Leave a comment if you have any questions about Recovering lost .MJ2 files after deleting, cleaning or formatting!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.


Questions and answers

  • What is the purpose of the .MJ2 format and what types of files does it typically contain?

    The .MJ2 format, also known as Motion JPEG 2000, is a video file format that is designed for the storage, transmission, and presentation of motion sequences. It is based on the JPEG 2000 image compression standard and is commonly used for video streaming and archival purposes.

    The .MJ2 format typically contains video files that are encoded using the Motion JPEG 2000 compression algorithm. These files can store individual frames as JPEG 2000 images, allowing for efficient compression and decompression of video data. The format supports both lossless and lossy compression, providing flexibility in terms of file size and quality trade-offs.

    Due to its high compression efficiency and support for various resolutions and frame rates, the .MJ2 format finds applications in digital cinema, video surveillance, medical imaging, and other domains where efficient video encoding and decoding are crucial.

  • How does the .MJ2 format differ from other video file formats, such as .MP4 or .AVI?

    The .MJ2 (Motion JPEG 2000) format differs from other video file formats like .MP4 or .AVI in several ways:

    1. Compression: MJ2 uses the Motion JPEG 2000 compression algorithm, which is different from the compression methods used in MP4 (typically H.264 or H.265) or AVI (which can support various codecs). Motion JPEG 2000 compresses each frame of the video individually, resulting in larger file sizes compared to more advanced compression techniques used in MP4 or AVI.
    2. Quality: Due to the individual compression of frames, MJ2 can potentially offer higher image quality compared to MP4 or AVI, especially when dealing with high-motion videos. However, this comes at the cost of larger file sizes.
    3. Metadata: MJ2 supports metadata storage, allowing additional information about the video to be embedded within the file. This can include details like color profiles, timestamps, or other descriptive data. MP4 and AVI formats also support metadata, but the specific types and extent of metadata may vary.
    4. Interoperability: MP4 and AVI are widely supported across various platforms, devices, and media players. On the other hand, MJ2 is less commonly supported and may require specific software or codecs to play or edit.
    5. Usage: MJ2 is often used in professional video editing and archival applications where high-quality, lossless, or near-lossless video is required. MP4 and AVI, on the other hand, are more commonly used for general-purpose video playback, streaming, or sharing on the web.

    Overall, the choice of video format depends on factors like intended usage, required quality, file size constraints, and compatibility with playback devices or editing software.

  • Are there any specific software applications or media players that are compatible with .MJ2 files, or is it a less commonly supported format?

    The .MJ2 file format, also known as Motion JPEG 2000, is a less commonly supported format compared to other video formats. However, there are still some software applications and media players that can handle .MJ2 files. Here are a few examples:

    1. VLC Media Player: VLC is a popular media player that supports a wide range of video formats, including .MJ2 files. It is available for Windows, Mac, Linux, and various other platforms.
    2. Adobe Premiere Pro: Premiere Pro is a professional video editing software that can import and export .MJ2 files. It is available for both Windows and Mac.
    3. QuickTime Player: QuickTime is a multimedia framework developed by Apple, and the QuickTime Player can play .MJ2 files. However, support for QuickTime has been discontinued on Windows, so it may not be the best option for Windows users.
    4. FFmpeg: FFmpeg is a command-line tool that can handle various multimedia formats, including .MJ2. It is a versatile tool but requires some technical knowledge to use.

    These are just a few examples, and there may be other software applications available that can handle .MJ2 files. It's always a good idea to check the documentation or specifications of a specific software to confirm its compatibility with .MJ2 files.

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