Method and apparatus for providing high speed recording on an optical medium

A system for positioning an optical head during a recording operation comprising:

• an optical disc containing data, said optical head to perform the recording operation on said optical disc and to produce a wobble signal based on address information contained on said optical disc;
• a controller circuit to cause said system to operate in a constant linear velocity (CLV) recording mode;
• a tracking CLV circuit to receive the wobble signal from the optical head and to determine a wobble clock signal based on said wobble signal;
• a decoder, coupled to the tracking CLV circuit, to receive said wobble clock signal and to generate a sync clock signal, said sync clock signal based on said wobble clock signal;
• an encoder loop circuit, coupled to the decoder, to receive said sync clock signal and to generate an encoder clock signal;
• and,
• an encoder block, coupled to the encoder loop circuit and the decoder, said encoder block to receive and compare said sync clock signal to said encoder clock signal and, based on said comparing, provide a position command to position the optical head during said recording operation.

A method for positioning an optical head of an optical disk during a recording operation, said optical disk having a plurality of tracks, the method comprising:

• implementing a continuous angular velocity (CAV) recording mode;
• varying a sync clock signal as the optical head of the optical drive moves from an inner diameter to an outer diameter of said optical disk;
• and,
• tracking said sync clock signal with an encoder loop circuit.