How are DVDs made?
In: Technology
Depends; straight DVDs are a disc of plastic covered in a foil that’s then pressed against a negative image mould. Then another piece of plastic is heated and pressed onto this, encasing the foil and melting to the first piece of plastic.
DVD-R and other writeable/rewritable discs have a layer of ink on the foil and another layer of a different type of plastic sandwiched in there so that the pits in the foil can be smoothed over and re-pitted as needed.
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