Having problems opening a cdr file?

Find out what programs can help open, view, play or convert your cdr files.

Opening cdr files
Macintosh DVD/CD Master

Did your computer fail to open a cdr file? We explain what cdr files are and recommend software that we know can open or convert your cdr files.

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What is cdr file?

Disc image created on a Macintosh computer using the built-in Disk Utility program; may contain multiple folders and files in a single disc image file that can be burned to a CD; similar to an .ISO file created on a Windows computer. To create a ".cdr" file with Apple Disk Utility, first select the "Convert" option, then open an existing disc image file. Next, select "DVD/CD master" from the Image Format menu and click "Save". NOTE: If a ".cdr" file will not open on a Windows computer, it may be possible to open the file by changing the file extension from ".cdr" to ".iso".

Software that will open, convert or fix cdr files

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