Patent ID: 7596062

Claim:
A method of preventing an optical recording medium from being fractured, the method comprising: detecting a first tracking error signal provided from a data recording/reproducing apparatus when the optical recording media is rotated at a first speed; detecting a second tracking error signal provided from the data recording/reproducing apparatus when the optical recording media is rotated at a second speed; determining whether the optical recording media is cracked by comparing a first abnormal pulse of the first tracking error signal and a second abnormal pulse of the second tracking error signal; and stopping an operation of the data recording/reproducing apparatus when the optical recording media is determined to be cracked, wherein determining whether the optical recording media is cracked comprises: calculating an average voltage value and an average dwell time value of the first abnormal pulse; calculating an average voltage value and an average dwell time value of the second abnormal pulse; and determining whether the optical recording media is cracked by comparing the average voltage values or the average dwell time values of the first abnormal pulse with the average voltage values or the average dwell time values of the second abnormal pulse.