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Glass mastering

Part of the CD and DVD disc manufacturing process that uses a laser (which is modulated by the data to be stored on the disc) to expose areas of a photo-resist layer on a glass disc, where the final pits are required. These areas are then developed and the photo resist layer metallized so that stampers can be grown by electroforming using this metal layer. The stampers are then used for molding CD and DVD discs.

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