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What is an ECM File?

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Question: What is an ECM File?

Did you find an ECM file on your computer and wonder what program should open it? Maybe someone emailed you an ECM file but you're not sure how to use it. Perhaps you tried to open the ECM file but Windows told you that it could not open it.

Before you can open an ECM file (assuming it's even a file format that's intended to be viewed or edited), you'll need to determine what kind of file the .ECM file extension refers to.

Answer: A file with the ECM file extension is an Error Code Modeler file.

ECM files are highly compressed CD image files like ISO, BIN, CDI, NRG, etc.

An ECM file might also be a Cmpro Examples file.

Other types of files may also use the ECM file extension. If you know of any additional file formats that use the .ECM extension, please let me know so I can update this information.

How To Open an ECM File:

The easiest way to open an ECM file is to double-click on it and let your PC decide which default application should open the file. If no program opens the ECM file then you probably don't have an application installed that can view and/or edit ECM files.

Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with. See my List of Executable File Extensions for a listing of file extensions to avoid and why.

If your ECM file is indeed an Error Code Modeler file, you can use Error Code Modeler, a program by Neill Corlett, to extract the original CD image file from the ECM file. After that, you can burn the CD/DVD/Blu-ray image to disc with a disc burning application as you normally would.

ECM files can also be opened with Gemc.

See How To Burn an ISO Image File to a CD, DVD, or BD if that image is in the ISO format and you need some guidance.

If you know anything else useful about ECM files, please let me know so I can update this page.

If you find that an application on your PC does try to open the ECM file but it's the wrong application or if you would rather have another installed program open ECM files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert an ECM File:

There are two main ways to attempt to convert an ECM file to another file type:

The first option involving opening the ECM file in its native program is preferable because it's both easier and will probably result in a more accurate file conversion. Of course if you don't have a program that opens ECM files, a third-party file conversion tool (the second option) could be very useful.

Important: You cannot usually change a file extension (like the ECM file extension) to one that your computer recognizes and expect the newly renamed file to be usable. An actual file format conversion using one of the methods described above must take place in most cases.

Still Having Problems Opening or Using an ECM File?

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the ECM file and I'll see what I can do to help.

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