Abstract: In one embodiment, a disc has a substrate; a data layer on the substrate; an anomaly-feature in the data layer disc capable of generating a read anomaly having a predictable anomaly profile; and anomaly profile data recorded in the data layer for characterizing the anomaly-feature. A disc can be labeled by imposing an anomaly-feature in the data layer capable of generating a read anomaly having a predictable anomaly profile; and disposing anomaly profile data on the disc, wherein the anomaly profile data characterizes the anomaly-feature.

Abstract: Disclosed herein is an embossing apparatus, methods of use thereof and articles produced therefrom. In one embodiment, the method of forming an embossed substrate comprises: disposing a substrate a platen and a stamper comprising a negative of a desired surface feature, wherein the stamper is affixed to a magnetically permeable block comprising an induction coil, and wherein the stamper comprises a relative magnetic permeability gradient, pressing the stamper and the substrate together, passing an alternating electrical current through the induction coil, and changing the alternating electrical current in the induction coil. This apparatus is particularly useful for the manufacture of data storage media.

Abstract: An improved process for the manufacture of plastic articles such as light assemblies, and the articles made by said process, are disclosed. The disclosed process includes a step wherein one or more colors are decorated onto a single film which is then incorporated with other components in an in-mold decorating process to yield the improved articles of the invention.