.JMF 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 .JMF file recovery guide for Windows, MacOS, Android and IOS in 2023.

JMF File Recovery

What is a .JMF file?

Native project format created by Jackhammer, a level and map editor for games with quake-style BSP architecture; stores a level and all related information, which includes map sources.

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

There are several common causes of ".JMF" (Java Media Framework) files being lost or experiencing failure. Some of these causes include:

  1. Accidental deletion: Users may accidentally delete ".JMF" files while organizing or cleaning up their computer or storage devices.
  2. File system corruption: File system corruption can occur due to hardware issues, software bugs, or improper shutdowns, leading to the loss or failure of ".JMF" files.
  3. Virus or malware attacks: Viruses or malware can infect and damage ".JMF" files, making them inaccessible or corrupt.
  4. Software or hardware conflicts: Incompatibility issues between the Java Media Framework software and other software or hardware components can result in the loss or failure of ".JMF" files.
  5. Power outages or system crashes: Sudden power outages or system crashes during the creation, editing, or saving of ".JMF" files can cause data loss or corruption.
  6. Improper file transfer: If ".JMF" files are not transferred correctly or interrupted during the process, they may become corrupted or lost.
  7. Disk errors: Physical errors or bad sectors on the storage device where ".JMF" files are stored can lead to their loss or failure.
  8. Human errors: Mistakes made by users, such as accidental formatting of storage devices or improper handling of files, can result in the loss of ".JMF" files.
  9. Software bugs or glitches: Occasionally, software bugs or glitches within the Java Media Framework software itself can cause ".JMF" files to become inaccessible or fail.
  10. Hardware failures: Hardware failures, such as a malfunctioning hard drive or a faulty storage device, can lead to the loss or failure of ".JMF" files.

It's important to regularly backup ".JMF" files to prevent data loss and use reliable data recovery methods if files are lost or corrupted.

How to recover lost ".JMF" 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 ".JMF" 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 ".JMF" file is always to create it once more.

Use programs for recovering ".JMF" 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 ".JMF" 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 ".JMF" 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 ".JMF" extension?

Looking for how to open a stereo jackhammer Project image file file?

Programs that open ".JMF" files

Chain Studios Jackhammer Chain Studios Jackhammer
Chain Studios Jackhammer Chain Studios Jackhammer

Additional Information

  • File type: Jackhammer Project

  • File extension: .JMF

  • Developer: Chain Studios

  • Category: Game 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 12:16 #
    Leave a comment if you have any questions about Recovering lost .JMF 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 process of repairing a .JMF file and what tools or software are commonly used for this task?

    A .JMF (Java Media Framework) file is a multimedia container format used for storing audio and video data. If a .JMF file is corrupted or damaged, the following steps can be taken to repair it:

    1. Copy the file: Before attempting any repair, make a copy of the original .JMF file to prevent further damage or loss of data.
    2. Use a reliable repair tool: Several software tools are available that specialize in repairing corrupted multimedia files, including .JMF files. Some commonly used tools are:
    • Stellar Repair for Video
    • Remo Repair AVI
    • Digital Video Repair
    • DivFix++

    These tools often have a user-friendly interface and can automatically detect and repair various issues within the .JMF file.

    1. Open the file in a media player: Sometimes, the file may not be completely damaged, and it might still be playable in a media player. Try opening the file in different media players, such as VLC Media Player or Windows Media Player, to see if it can be played partially or fully. If it plays, you can consider converting it to a different format to ensure future compatibility.
    2. Convert the file: If the .JMF file cannot be repaired, an alternative approach is to convert it to a different format. There are various video conversion tools available, such as HandBrake or FFmpeg, which can convert the file to a different format like .AVI or .MP4. This process may result in some loss of quality, but it can make the file playable again.

    It's important to note that the success of repairing a .JMF file depends on the extent of the damage and the specific tools or software used. It's recommended to try multiple repair tools or seek professional help if the file is of high importance.

  • What are some common issues or errors that can occur with .JMF files, and what are the potential causes for these problems?

    Some common issues or errors that can occur with .JMF (Java Media Framework) files include:

    1. Unsupported Media Type: This error occurs when the media file format is not supported by the Java Media Framework. The potential cause could be using a media format that is not supported by the JMF or using an outdated version of the JMF library.
    2. Missing or Incompatible Codecs: If the required codecs are not available or compatible with the JMF, it can lead to issues. This can happen when trying to play a media file that requires a specific codec that is not installed on the system.
    3. Corrupted or Incomplete File: If the .JMF file is corrupted or incomplete, it may not be able to be played properly. This can occur due to network issues during file transfer or improper file handling.
    4. Incorrect File Path or URL: Providing an incorrect file path or URL can cause issues with accessing the .JMF file. This can happen when the file is moved, renamed, or the URL is mistyped.
    5. Incompatible JMF Version: Using an incompatible version of the JMF library with the .JMF file can lead to errors. It is essential to ensure that the JMF version being used is compatible with the file.
    6. Insufficient System Resources: If the system does not have enough resources (e.g., memory, processing power) to handle the .JMF file, it can result in playback issues or errors.
    7. Conflicting Software: Some conflicts may arise if other software or applications on the system interfere with the JMF's operation. This can be caused by incompatible codecs, media players, or other multimedia-related software.
    8. Security Restrictions: Certain security restrictions or permissions may prevent the .JMF file from being played. This can occur due to browser settings, firewall configurations, or user permissions.

    To troubleshoot these issues, it is recommended to ensure that the JMF library is up to date, install necessary codecs, validate file integrity, check file paths or URLs, verify system resources, resolve any software conflicts, and adjust security settings if needed.

  • Are there any specific best practices or tips for preventing .JMF file corruption or damage, and how can one ensure the integrity of these files for long-term use?

    To prevent .JMF (Java Media Framework) file corruption or damage and ensure the long-term integrity of these files, you can follow these best practices and tips:

    1. Use reliable storage: Store your .JMF files on reliable storage media such as hard drives or solid-state drives (SSDs) to minimize the risk of physical damage or data corruption.
    2. Backup your files: Regularly create backups of your .JMF files and store them in separate locations. This ensures that even if the original files get corrupted, you can restore them from the backup.
    3. Use error-checking tools: Employ error-checking tools or utilities that can verify the integrity of your .JMF files. These tools can identify and repair any errors or corruption present in the files.
    4. Avoid abrupt power loss: Sudden power outages or system shutdowns can lead to file corruption. Use an Uninterruptible Power Supply (UPS) or ensure a proper power backup mechanism to prevent such incidents.
    5. Update software and drivers: Keep your Java Media Framework software and related drivers up to date. Developers often release updates to fix bugs and security vulnerabilities, which can help prevent file corruption.
    6. Scan for malware: Regularly scan your system for malware or viruses that could potentially corrupt or damage your .JMF files. Use reputable antivirus software and keep it updated.
    7. Avoid manual file modification: Unless you are familiar with the internal structure of .JMF files, avoid manually modifying them. Improper modifications can lead to corruption. Use appropriate software or libraries to work with .JMF files.
    8. Verify file downloads: When downloading .JMF files from the internet, ensure that you download them from trusted sources. Verify the file's integrity using checksums or digital signatures provided by the source.
    9. Monitor storage health: Keep an eye on the health of your storage media. Monitor for signs of degradation or impending failure, such as unusual noises from hard drives or SMART (Self-Monitoring, Analysis, and Reporting Technology) alerts.
    10. Document file details: Maintain a record of important details about your .JMF files, such as file size, creation date, and any associated metadata. This documentation can help identify and recover from any potential corruption or damage.

    By following these best practices, you can minimize the risk of .JMF file corruption or damage and ensure their long-term integrity for use.

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