Recording method and apparatus, optical disk, and computer-readable storage medium

A recording apparatus for recording digital content onto an optical disk which has a first entry area and a second entry area, the first entry area being an area that is to be first accessed when the optical disk is loaded to a consumer reproduction apparatus, and the second entry area being an area that is to be first accessed when the optical disk is loaded to an industrial reproduction apparatus, the recording apparatus comprising:

• an accepting unit operable to accept from a user an indication whether the optical disk is intended for consumer use or industrial use;
• an encrypting unit operable to encrypt the digital content, according to a different encryption method depending on whether the optical disk is intended for consumer use or industrial use;
• a first writing unit operable to, when the optical disk is intended for consumer use, (a) write the encrypted digital content to the optical disk, and (b) write a jump command which designates the digital content as a jump destination, to the first entry area;
• and
• a second writing unit operable to, when the optical disk is intended for industrial use, (a) write the encrypted digital content and message data to the optical disk, (b) write a jump command which designates the message data as a jump destination, to the first entry area, and (c) write a jump command which designates the digital content as a jump destination, to the second entry area,
• wherein the message data indicates that the digital content cannot be reproduced by the consumer reproduction apparatus.

An optical disk which has a first entry area and a second entry area and on which digital content is recorded, wherein

• the first entry area is an area to be first accessed when the optical disk is loaded to a consumer reproduction apparatus, while the second entry area is an area to be first accessed when the optical disk is loaded to an industrial reproduction apparatus,
• a jump command that designates the digital content as a jump destination is written in the first entry area, if the optical disk is intended for consumer use, and
• a jump command that designates message data as a jump destination is written in the first entry area, and a jump command that designates the digital content as a jump destination is written in the second entry area, if the optical disk is intended for industrial use,
• wherein the message data indicates that the digital content cannot be reproduced by the consumer reproduction apparatus.

A recording method for recording digital content onto an optical disk, comprising:

• an accepting step for accepting from a user an indication whether the optical disk is intended for consumer use or industrial use;
• an encrypting step for encrypting the digital content, using a different encryption method depending on whether the optical disk is intended for consumer use or industrial use;
• a first writing step for, when the optical disk is intended for consumer use, (a) generating a first area on the optical disk, and (b) writing the encrypted digital content to the first area;
• and
• a second writing step for, when the optical disk is intended for industrial use, (a) generating a first area and a second area on the optical disk, (b) writing the encrypted digital content to the second area, and (c) writing message data to the first area,
• wherein the message data indicates that the digital content cannot be reproduced by a consumer reproduction apparatus.

A computer-readable storage medium storing a computer program for recording digital content onto an optical disk, the computer program comprising

• an accepting step for accepting from a user an indication whether the optical disk is intended for consumer use or industrial use;
• an encrypting step for encrypting the digital content, using a different encryption method depending on whether the optical disk is intended for consumer use or industrial use;
• a first writing step for, when the optical disk is intended for consumer use, (a) generating a first area on the optical disk, and (b) writing the encrypted digital content to the first area;
• and
• a second writing step for, when the optical disk is intended for industrial use, (a) generating a first area and a second area on the optical disk, (b) writing the encrypted digital content to the second area, and (c) writing message data to the first area,
• wherein the message data indicates that the digital content cannot be reproduced by a consumer reproduction apparatus.