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What are the physical sizes of CD-R and CD-RW discs?

April 26, 2017CD-R CD-RW consumer electronics discs physical

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What are the physical sizes of CD-R and CD-RW discs?

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CD-R and CD-RW discs come in standard 12 cm (120 mm) and 8 cm (80 mm) sizes. The most popular is the larger 12 cm type which has the same physical dimension as most commercial audio CDs and computer software CD-ROMs. 8 cm discs are less common but, thanks to their smaller size, are gaining popularity for use in consumer electronic devices such as portable compressed digital audio players, digital still image cameras and data storage products like miniature CD recorders.