Patent ID: 6717894
Filing Date: 2004-04-06
Classification: G11B

Abstract:
A recording and/or reproducing apparatus in which a data readout system for a recordable optical disc differs from a data readout system for a replay-only optical disc, said apparatus comprising:an optical head for illuminating the laser light towards the optical disc to record data thereon and for detecting the reflected light from said optical disc; a readout processing unit for processing signals detected by said optical head; and write processing unit for controlling data writing on the recordable optical disc by said optical head; said readout processing unit being operable to selectively switch between two operations, a first operation that corresponds to the recordable optical disc and employs a first tracking error signal process, and a second operation that corresponds to the replay-only optical disc and employs a second tracking error signal process; whereby said read-out processing unit employs said first operation when data is being recorded by said optical head on the recordable optical disc and employs said second operation when data recorded on said recordable optical disc by said optical head is being verified.