MDX file icon

MDX File Extension

Extended Media Descriptor Format

What is MDX file?

An MDX file (Extended Media Descriptor also known as Media Data eXtended) is a disc image typically generated by the Daemon Tools program. The file contains disc data and volume formatting. MDX files can serve as virtual drives in order to emulate the original discs.

Differences between MDX, MDF and MDS files

The MDX format was developed as a new, better version of the MDF and MDS formats. The difference is that in a single MDX file, there is a complete set of data of a disc image, while in the older versions data had to be divided into two files – MDF and MDS. MDF and MDS always had to occur together, if not, it was impossible to read the image.

MDX files can be freely converted into ISO and also the reversed process is possible.

Programs which support MDX file extension

The following listing features MDX-compatible programs. Files with MDX extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support MDX file

Updated: 01/03/2023

How to open file with MDX extension?

There can be multiple causes why you have problems with opening MDX files on given system. What is important, all common issues related to files with MDX extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install DAEMON Tools

Install software to open MDX file The most common reason for such problems is the lack of proper applications that supports MDX files installed on the system. This issue can be addressed by downloading and installing DAEMON Tools or different compatible program, such as Astroburn. The full list of programs grouped by operating systems can be found above. The safest method of downloading DAEMON Tools installed is by going to developer’s website (DT Soft Ltd) and downloading the software using provided links.

Step 2. Check the version of DAEMON Tools and update if needed

Update software that support file extension MDXYou still cannot access MDX files although DAEMON Tools is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. This can be one of the causes why MDX files are not compatible with DAEMON Tools. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using DAEMON Tools.

Step 3. Set the default application to open MDX files to DAEMON Tools

After installing DAEMON Tools (the most recent version) make sure that it is set as the default application to open MDX files. The method is quite simple and varies little across operating systems.

Associate software with MDX file on Windows

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the MDX file
  • Click Choose another app and then select More apps option
  • Finally select Look for another app on this PC, point to the folder where DAEMON Tools is installed, check the Always use this app to open MDX files box and conform your selection by clicking OK button
Associate software with MDX file on Mac

Selecting the first-choice application in Mac OS

  • From the drop-down menu, accessed by clicking the file with MDX extension, select Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • A message window should appear informing that This change will be applied to all files with MDX extension. By clicking Continue you confirm your selection.

Step 4. Verify that the MDX is not faulty

Should the problem still occur after following steps 1-3, check if the MDX file is valid. It is probable that the file is corrupted and thus cannot be accessed.

Check MDX file for viruses
1. Verify that the MDX in question is not infected with a computer virus

If the MDX is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the MDX file is indeed infected follow the instructions below.

2. Ensure the file with MDX extension is complete and error-free

Did you receive the MDX file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with MDX extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Extended Media Descriptor Format file.

4. Verify that your device fulfills the requirements to be able to open DAEMON Tools

If the system is under havy load, it may not be able to handle the program that you use to open files with MDX extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Extended Media Descriptor Format files. It is possible that one of the available system or driver updates may solve the problems with MDX files affecting older versions of given software.

Conversion of a MDX file

File Conversions from MDX extension to a different format
File conversions from other format to MDX file
Do you want to help?

If you have additional information about the MDX file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on MDX file.

Top File Extensions
Show more
File Extension of the day
sxc icon


StarOffice Calc Spreadsheet

Files with .SXC extension store spreadsheets documents created with StarOffice. SXC files support standard spreadsheet functions, including: cha...