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How to Convert .Cdr to .Iso Image on a Mac

For Mac users, a built-in program called disk utility can copy CD or DVD as an image in .cdr format and store them on your hard drive.

Unfortunately, some programs like unetbootin require a disk image in .iso format.

This tutorial shows how to convert the image from .cdr to .iso using the built-in hdiutil on a Mac.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.

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