Optical storage medium inspection method and optical storage medium inspection equipment and optical storage media and optical information apparatus

摘要

An optical pickup head for irradiating the optical storage medium, a light beam, by receiving the light beam reflected from the optical storage medium, and outputs a signal based on the received light, the optical information apparatus, the optical pickup head and a jitter measuring unit for measuring jitter in signals output from the determination unit that the optical storage medium to determine whether defective or non-defective from the jitter was the measurement, wherein the jitter measuring unit, the digital data is 2 or more with respect to the optical storage medium length which is based on a period T and an integer k of is recorded as a mark or space train of kT, to measure the jitter on the space train 3T mark or more.