Patent ID: 7649818

Claim:
An optical recording apparatus comprising: a laser diode to emit a laser beam; a laser diode driver to operate the laser diode; a photo-detector to receive the laser beam, the laser beam having been reflected from an optical disc; and a microprocessor to search for an optimum recording power by controlling the laser diode driver and the photo-detector, wherein the microprocessor searches for a first optimum recording power, records data at the first optimum recording power, enters a standby mode, determines whether recording environments have changed when a user desires to further record data, re-searches for a second optimum recording power when the recording environments have changed, wherein, if a specific time at which the user desires to re-record the data is longer than a time at which the first optimum recording power has been found by a reference time or over, the microprocessor determines that the recording environments are changed.