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How Blu-ray discs are so resistant to scratches?

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How Blu-ray discs are so resistant to scratches?

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  1. Blu-ray discs have a special coating on the disk which withstands scratching. A Blu-ray Disc actually has about 7 layers to it. It works amazingly well and out of my 80+ Blu-rays, not a single one has a scratch! HUGE improvement over DVD/CD.

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