.SDX 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 .SDX file recovery guide for Windows, MacOS, Android and IOS in 2024.

SDX File Recovery

What is a .SDX file?

MIDI data "dumped" from a MIDI (.MID) file compressed using the Simmons SDX system.

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

There are several common causes of ".SDX" file loss or failure:

  1. Accidental deletion: Users may accidentally delete ".SDX" files while trying to clean up their storage or organizing their files.
  2. File system corruption: Issues with the file system, such as disk errors or software glitches, can lead to the corruption or loss of ".SDX" files.
  3. Virus or malware infection: Malicious software can infect and damage ".SDX" files, rendering them inaccessible or corrupt.
  4. Hardware failure: Problems with the storage device, such as a hard drive failure or a faulty memory card, can result in the loss of ".SDX" files.
  5. Software conflicts: Incompatibility issues between different software applications can cause errors or data loss, including ".SDX" files.
  6. Power outages or system crashes: Sudden power outages or system crashes while working with ".SDX" files can lead to their corruption or loss.
  7. Improper file transfer or handling: If ".SDX" files are not transferred or handled correctly, such as interrupted file transfers or improper ejection of storage devices, it can cause data loss.
  8. Formatting or partitioning errors: Mistakenly formatting or partitioning the storage device that contains ".SDX" files can result in their loss.
  9. Human error: Accidental actions, such as overwriting or modifying ".SDX" files incorrectly, can cause their loss or failure.
  10. Software bugs or glitches: Sometimes, software bugs or glitches can cause ".SDX" files to become inaccessible or corrupted.

It is important to regularly backup ".SDX" files to avoid permanent loss and use reliable data recovery methods if data loss occurs.

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

Use programs for recovering ".SDX" 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 ".SDX" 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.

Partition Recovery™ 4.9
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 ".SDX" 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 ".SDX" extension?

Looking for how to open a stereo sample MIDI Dump Exchange image file file?

Programs that open ".SDX" files

Apple QuickTime Player Apple QuickTime Player
FMJ-Software Awave Studio FMJ-Software Awave Studio
Apple QuickTime Player Apple QuickTime Player

Additional Information

  • File type: Sample MIDI Dump Exchange

  • File extension: .SDX

  • Developer: N/A

  • Category: Audio Files

  • Format: N/A

  • Mime-type: application/octet-stream

  • HEX: 53 44 58 3A


  • File types that use the extension .SDX:

    • Sample MIDI Dump Exchange

    • Kivuto Secure Download Manager File


We will be happy to answer your questions!

Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 15:59 #
    Leave a comment if you have any questions about Recovering lost .SDX files after deleting, cleaning or formatting!
Post comment
Leave a reply
Your email address will not be published. Required fields are marked *

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 .SDX file?

    Repairing a .SDX file typically involves following these steps:

    1. Identify the issue: Determine the specific problem with the .SDX file. It could be corruption, errors, or other issues.
    2. Create a backup: Before attempting any repairs, it is essential to create a backup of the original .SDX file. This ensures that you have a copy of the file in case anything goes wrong during the repair process.
    3. Use built-in repair tools: Some software applications that use .SDX files may have built-in repair or recovery options. Check the documentation or support resources for the software you are using to see if such tools are available.
    4. Third-party repair tools: If the software you are using does not have built-in repair options, you can search for third-party file repair tools specifically designed for .SDX files. These tools often have advanced algorithms to fix various file issues.
    5. Manual repair: In some cases, it may be possible to repair a .SDX file manually. This typically involves analyzing the file structure, identifying corrupt or missing data, and making appropriate changes using a hex editor or similar tools. However, manual repair is complex and should only be attempted by experienced users.
    6. Reinstall or update software: If the .SDX file is associated with a specific software application, reinstalling or updating the software may help resolve any compatibility issues that caused the file to become damaged.
    7. Seek professional help: If all else fails, you can contact the software developer's support team or consult professional data recovery services. They may have specialized knowledge or tools to repair or recover the .SDX file.

    Note: The specific process of repairing a .SDX file may vary depending on the software application associated with it and the nature of the file issue.

  • What are the common reasons for a .SDX file to become corrupt and require repair?

    There are several common reasons for a .SDX file to become corrupt and require repair:

    1. Software or hardware issues: If there is a sudden power outage, system crash, or hardware failure while the .SDX file is in use, it can lead to corruption.
    2. Virus or malware infection: Malicious software can infect and corrupt files on your computer, including .SDX files.
    3. Improper file handling: If the .SDX file is not closed properly or the application crashes while working with the file, it can result in corruption.
    4. File system errors: Issues with the file system, such as bad sectors on the hard drive or file system corruption, can cause .SDX files to become corrupt.
    5. Incompatibility: If the .SDX file was created using a different version of the software or a different program altogether, it may not be compatible with the current software version, leading to corruption.
    6. Network issues: If the .SDX file is stored on a network drive, issues with the network connection or file transfer can result in corruption.
    7. Disk space limitations: If there is insufficient disk space available to save changes to the .SDX file, it can become corrupted.

    It is important to regularly backup your .SDX files to minimize the risk of corruption and have a recovery plan in place in case corruption occurs.

  • Are there any specific tools or software available for repairing .SDX files?

    There are several tools and software available for repairing .SDX files. Some of them include:

    1. Stellar Phoenix JPEG Repair: This software is specifically designed to repair corrupt or damaged JPEG and .SDX files. It can fix various issues like header corruption, invalid file structure, and more.
    2. Remo Repair PSD: Although primarily designed for repairing Photoshop files (PSD), this software can also repair .SDX files. It can fix issues like file corruption, CRC errors, and more.
    3. File Repair Toolkit: This toolkit provides a comprehensive set of tools for repairing various file types, including .SDX files. It can repair corrupt files, recover data, and restore file integrity.
    4. Advanced File Repair: This software is capable of repairing corrupt or damaged files of different formats, including .SDX files. It can fix issues like file header corruption, invalid data, and more.

    It is important to note that the effectiveness of these tools may vary depending on the extent of the file corruption. It is recommended to try out the trial versions or free tools before purchasing any software.

Hello! This is AI-based Hetman Software virtual assistant, and it will answer any of your questions right away.
Start Chat