All the available items are made of a special kind of plastic called polycarbonates. Polycarbonate plastics come under #7 plastic and are recyclable. Besides the plastic itself, there will be a very thin layer of aluminium or gold inside the disk. Not surprisingly, these are also recyclable. Therefore, there are no parts in a digital disk that are not recyclable using today’s technology. And because polycarbonates are harmful to the environment and other living things if you dispose of them incorrectly, it becomes even more important to recycle them.