Optical disc and optical disc device

An optical disc drive with the ability to read and/or write data from/on an optical disc with multiple information layers including a first information layer and a second information layer, the drive comprising:

• an objective lens for converging a light beam;
• a lens actuator for driving the objective lens;
• a photodetector section, which receives the light beam that has been reflected from the optical disc and converts the received light beam into an electrical signal;
• and
• a control section for determining the values of a first group of parameters, which are set to read data from the first information layer, and those of a second group of parameters, which are set to read data from the second information layer, during a disc loading process,
• wherein in performing the disc loading process, the control section determines the values of the first group of parameters first, and then determines the values of the second group of parameters based on correlation information, representing correlation between the values of the first and second groups of parameters that were set during a previous disc loading process, and on the values of the first group of parameters that have just been determined during the current disc loading process.