Disk-shaped recording medium and recording/reproducing device for disk-shaped recording medium

A method of recording information on an optical disc, the optical disc having recording surfaces on its both surfaces, the optical disc having a burst cutting area (BCA) in which information about the optical disc is recorded and a lead-in area located on a peripheral side of the BCA and having information about the optical disc recorded therein, the BCA being divided into a plurality of blocks, the method comprising the steps of:

• recording information indicating at least disc type, recording characteristics, a version number of a standard with which the disc is compliant, and whether the disc is double-sided in a first one of the plurality of blocks;
• recording at least optical disc intrinsic information used for copy management and a manufacturer identification code in a second one of the plurality of blocks;
• and
• recording the disc type, recording characteristics, and a version number of the standard with which the disc is compliant in the lead-in area, without recording the information indicating whether the disc is double-sided or not in the lead-in area.

A method of reproducing information from an optical disc, the optical disc having recording surfaces on its both surfaces, the optical disc having a burst cutting area (BCA) in which information about the optical disc is recorded and a lead-in area located on a peripheral side of the BCA and having information about the optical disc recorded therein, the BCA being divided into a plurality of blocks;

• wherein information indicating at least disc type, recording characteristics, a version number of a standard with which the disc is compliant, and whether the disc is double-sided is recorded in a first one of the plurality of blocks;
• wherein at least optical disc intrinsic information used for copy management and a manufacturer identification code are recorded in a second one of the plurality of blocks;
• wherein in the lead-in area, the disc type, recording characteristics, and a version number of the standard with which the disc is compliant are recorded in the lead-in area, but the information indicating whether the disc is double-sided or not is not recorded in the lead-in area;
• and
• wherein information is reproduced from the BCA and lead-in area of the optical disc.

An optical disc having entrance surfaces for an optical beam on both sides of the optical disc, comprising:

• a burst cutting area (BCA) in which information about the optical disc is recorded;
• and
• a lead-in area on a side A and a side B opposed to the side A the lead-in area being located on a peripheral side of the BCA and in which information about the optical disc is recorded,
• wherein the BCA has information recorded therein, the information indicating at least disc type, recording characteristics, a version number of a standard with which the disc is compliant, and whether the disc is double-sided or not,
• wherein the lead-in area has the information recorded therein, the information indicating at least disc type, recording characteristics, a version number of a standard with which the disc is compliant,
• wherein a direction of rotation for reading out the BCA of the side A and the side B is the same as a direction of rotation for reading out the lead-in area of the side A, and
• wherein a direction of rotation for reading out the lead-in area of the side B is reverse to the direction of rotation for reading out the lead-in area of the side A.