Patent ID: 7933176

Claim:
Apparatus for determining write strategy parameters for recording data on an optical record carrier, comprising: initialization means for setting initial write strategy parameters, setting means for setting initial variable levels and an initial experimental plan, based on variations of said initial write strategy parameters, for use in a design of experiments method for optimization of said write strategy parameters, optimization means for determining optimized write strategy parameters by use of a design of experiments method, and iteration means for checking if, based on a predetermined criterion, the optimized write strategy parameters determined by the optimization means shall be further optimized and, in case the write strategy parameters shall be further optimized, for determining new variable levels and a new experimental plan for use in another iteration of the design of experiments method for further optimization of said write strategy parameters, wherein said predetermined criterion comprises coefficient values of quadratic terms of a second-order model used for determining the optimized write strategy parameters by said optimization means.