Patent ID: 7670659

Claim:
An optical disc, comprising: a data surface for recording data; and a label surface opposite the data surface and having thereon a coating of encapsulated marking materials containing at least a plurality of first capsules, wherein the first capsules comprise at least one first radiation absorber to preferentially absorb at least one first predetermined wavelength of light and wherein the marking materials of the first capsules are capable of activation by the at least one first predetermined wavelength of light for the generation of a first color response on the label surface; wherein the coating further contains a plurality of second capsules, wherein the second capsules comprise at least one second radiation absorber to preferentially absorb at least one second predetermined wavelength of light different than the at least one first predetermined wavelength of light and wherein the marking materials of the second capsules are capable of activation by the at least one second predetermined wavelength of light for the generation of a second color response on the label surface; wherein the at least one first predetermined wavelength of light is a wavelength of light further capable of recording data in the data surface.