APPENDING RECORDINGS ON AN OPTICAL DISC USING HF DATA AND PRE-GROOVE POSITION INFORMATION

摘要

Method for accurately determining the link position for appending new recordings on an optical disc, where address information extracted from the HF data of a previous recording is used in conjunction with position information derived from the pre-groove to determine the link position for the new recording. The pre-groove position information may be derived from the phase of the pre-groove wobble, and the HF data address may be flywheeled to provide a more robust system. The drive may store and update a record table with the begin and end addresses of contiguous previously recorded area, the stored information being used in conjunction with position information derived from the pre-groove to determine the link position for the new recording.