Patent ID: 8588049

Claim:
Optical storage medium comprising a substrate layer, a data layer having a pit/land data structure with data arranged in tracks on the substrate layer, and a nonlinear layer with a super-resolution material disposed on the data layer, wherein the data structure comprises diffractive pits and lands having a length above an optical resolution limit of a pickup for reading of the data and super-resolution pits and lands having a length below said optical resolution limit, said pits and lands having a defined length with regard to a channel bit length, characterized in that a diffractive land preceding a super-resolution pit is changed by a first length depending on the laser power of the pickup, to compensate a phase shift of said super-resolution pit, and/or a diffractive pit preceding a super-resolution land is changed by the first length depending on the laser power of the pickup, to compensate a phase shift of said super-resolution land.