OPTICAL MEDIA

摘要

One embodiment of an optical medium (10) includes a substrate (12), a data recording layer (14) positioned on the substrate, a selectively transmissive layer (16) positioned on the data recording layer, and a label recording layer (20) positioned on the selectively transmissive layer, the label recording layer (20) optically accessible at only certain wavelengths through the data recording layer (14) and through the selectively transmissive layer (16).