| 摘要 |
A recordable medium, an apparatus for forming the medium and a method for using the medium to support media authentication and copy protection efforts. A blank recordable comprises a plurality of concentric tracks arranged to form an addressable data recording area. Embedded within the data recording area is a non-recordable zone at one or more selected addresses. The non-recordable zone (recordable medium identification, or RMID zone) is configured to permit an attempted recording operation to record data to the zone, as well as to prevent successful readback of the data during a subsequent readback operation. An embossment is preferably supplied to the RMID zone such as a metalized layer of pits and lands, a layer of optically contrasting marks within the recordable medium, or a layer of dye. The embossment interferes with the ability to readback the data that was attempted to be written to the zone. |
