Patent ID: 7839739

Claim:
A method of calibration for writing to an optical storage medium, said method comprising: receiving pattern data and instructions synchronized with said pattern data; writing said pattern data to said optical storage medium in accordance with said instructions, wherein said writing comprises (i) changing a test value for a writing characteristic in response to at least one of said instructions and (ii) writing some or all of said pattern data to said optical storage medium in accordance with said test value; reading a readback signal corresponding to said pattern data from said optical storage medium; processing said readback signal in accordance with said instructions, wherein said processing comprises (i) comparing said readback signal to an expected signal based on said pattern data, and (ii) correlating a characteristic of said readback signal with (a) at least one of said instructions and (b) one or more run lengths in said pattern data; and determining a value of a writing characteristic for writing data to said optical storage medium based at least in part on said readback signal.