摘要 |
A disc molding apparatus for forming an optical disc. The apparatus has a disc substrate cavity and a sprue mechanism in fluid communication with the cavity. A removable stamper located on one side of the disc substrate cavity forms data onto the disc substrate and the stamper is relasibly locked within the apparatus by an inner holder, which includes a locking mechanism. The apparatus also has a mechanism that forms a disc alignment mechanism in the disc substrate wherein the disc alignment mechanism is between the formatted data and a center of the disc substrate and the concentricity of the formatted data is specified relative to the disc alignment mechanism. |