Disk-shaped record medium and producing method for same, disk recording method and device, and disk playback method and device

A method of producing a disk-shaped record medium comprising the steps of:

• appending an error detection code to first data;
• shuffling a part of the error detection code in accordance with bit information relating to copy protection information (CPID) and the appended error detection code is written to each sector of the disk-shaped record medium;
• scrambling the data in each sector;
• modulating an error correction code block including a plurality of sectors with an error correction code and sync signal appended thereto;
• making a stamper by recording the first data and error detection code changed in accordance with the bit information of the data relating to the CPID and an error correction code appended thereto in a first area of a master disk;
• and
• producing the disk-shaped record medium using the stamper.

A method of recording in a disk-shaped recording medium comprising:

• recording predetermined data in a first area of the disk-shaped record medium, wherein the predetermined data includes first data and an error detection code encoded based on the first data appended thereto;
• shuffling the predetermined data and appended error detection code in accordance with bit information relating to copy protection information (CPID);
• and
• writing the appended error detection code to each sector of the disk-shaped record medium,
• wherein the data in each sector is scrambled,
• wherein an error correction code block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto, and
• wherein the modulated signal is recorded on the disk-shaped record medium.

A disk recording device, comprising:

• recording means for recording predetermined data in a first area of a disk-shaped record medium, wherein the predetermined data includes first data and an error detection code encoded based on the first data appended thereto;
• a changing means for shuffling the predetermined data and appended error detection code in accordance with bit information in data relating to copy protection information (CPID);
• and
• writing means for writing the appended error detection code is written to each sector of the disk-shaped record medium;
• wherein the data in each sector is scrambled,
• wherein an error correction code block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto, and
• wherein the modulated signal is recorded on the disk-shaped record medium.

A disk playback method of playing a disk-shaped record medium in which at least a predetermined data is recorded in a first area of the disk-shaped record medium, the method comprising:

• carrying out error detection of the data recorded in the first area:
• and
• restoring the data relating to the CPID in accordance with the result of error detection,
• wherein the data recorded in the first area includes first data and an error detection code encoded based on the first data and an error correction code appended thereto, and
• wherein the predetermined data and appended error detection code is shuffled in accordance with bit information of data relating to copy protection information (CPID) and the appended error detection code is written to each sector of the disk-shaped record medium,
• wherein the data in each sector is scrambled,
• wherein an error correction code block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto, and
• wherein the modulated signal is recorded on the disk-shaped record medium.

A disk playback device for playing a disk-shaped record medium in which at least a predetermined data is recorded in a first area of the disk-shaped record medium, the device comprising:

• an error detecting means for carrying out error detection of the data recorded in the first area, and
• a restoring means for restoring the data relating to the CPID in accordance with the result of error detection,
• wherein the data recorded in a first area includes first data and an error detection code encoded based on the first data and an error detection code appended thereto,
• wherein the predetermined data and appended error detection code is shuffled in accordance with bit information of data relating to copy protection information (CPID) and the appended error detection code is written to each sector of the disk-shaped record medium,
• wherein the data in each sector is scrambled:
• wherein an error correction code block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto, and
• wherein the modulated signal is recorded on the disk-shaped record medium.