three difference between CD and DVD..write in points.
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CD have single layer of pits. DVD have double layers of pits. Space between spiral loops is 1.6 micrometer in CD. Space between spiral loops is 0.74 micrometer in DVD.
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➪ Recording layer or metal layer is close to middle of the disk. CD have single layer of pits. DVD have double layers of pits. Space between spiral loops is 1.6 micrometer in CD.
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