Sometimes a DMG image is not useful for all applications. For example, if we want to use a CD/DVD image with the virtualization app VirtualBox, the image must be in ISO format. But once more, Disk Utility can make this task easily:
- Insert the CD/DVD into your Mac and open Disk Utility.
- When you see the CD/DVD in the left side of the application, select it and click on New Image.
- Make sure that the image format is CD/DVD Master, and the encryption is None (or something similar).
- Select the folder and the name of the file, change the extension to .cdr, and click Save.
- The last step is changing the extension of the result file to .iso.
And that’s all! As in the past post, it’s easy, fast, and without any external tool.
Problem Resolved 