How to Create a Backup OS X Snow Leopard DVD
In addition to being a backup copy of your operating system, your Mac OS X Snow Leopard disc also doubles as a boot disk. Like all physical media, your OS X DVD is subject to wear and tear. The easiest way to preserve the original is to create a copy of the boot disc. Mac OS X, with the Disk Utility, a built-in disc copy and repair program, lets you create disc images from which you can create a new DVD.
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Instructions
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Insert your Mac OS X Snow Leopard disc into the CD/DVD drive.
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Open the Disk Utility by going to "Applications," "Utilities," "Disk Utility."
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Click on "Mac OS X Install DVD" from the list in the left column of the Disk Utility dialog box.
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Click the "New Image" button at the top of the dialog box to open the Save As dialog.
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Type a new name for the image. You can leave the default if you want.
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Select "CD/DVD Master" from the "Image Format" drop-down menu.
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Select "None" from the "Encryption" drop-down menu.
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Click the "Save" button to start creating the disc image. This will take several minutes.
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Eject the Snow Leopard DVD.
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Insert a blank DVD into the CD/DVD drive.
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Select "Mac OS X Install DVD.cdr" from the drive list.
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Click the "Burn" button to start the burn process.
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Eject the DVD after the burn process ends.
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References
- Mac OS X Snow Leopard: The Missing Manual; David Pogue; 2009
- Expressing Scientific Insight: Make a Bootable Backup Snow Leopard Install Disc; Walter Jessen; December 2009
