Title:
RECORDING MEDIUM, METHOD FOR INITIALIZING RECORDING MEDIUM, ENCRYPTING METHOD AND DEVICE FOR RECORDING MEDIUM, DECRYPTING METHOD, AND ACOUSTIC/VIDEO/DATA DEVICE
Document Type and Number:
WIPO Patent Application WO/2000/079532
Kind Code:
A1
Abstract:
A CD-R or CD-RW disk (10) is produced as a specific disk (10') on which a media number (1) which is a combination of a disk ID expressed by a decimal six-digit number, an MCN of a decimal 13-digit number, and an ISRC serial number of a decimal five-digit number, and encrypted data (14) encrypted by the media number (1) are recorded. The disk is subjected to a predetermined initialization by an existing formatting method. As a result, the user can copy data with copyright such as music, movie, or computer program data to a single disk only once but cannot secondarily copy the copied data on the disk to another disk, thus protecting the data with copyright.
Inventors:
KANAYAMA MASAAKI (JP)
FUJIWARA TSUYOSHI (JP)
FUJIWARA TSUYOSHI (JP)
Application Number:
PCT/JP2000/003846
Publication Date:
December 28, 2000
Filing Date:
June 14, 2000
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
KANAYAMA MASAAKI (JP)
FUJIWARA TSUYOSHI (JP)
KANAYAMA MASAAKI (JP)
FUJIWARA TSUYOSHI (JP)
International Classes:
G11B20/00; G11B20/12; G11B23/28; G11B7/007; (IPC1-7): G11B20/10
Foreign References:
| JPH0785574A | 1995-03-31 | |||
| JPH1021144A | 1998-01-23 | |||
| JPH1196675A | 1999-04-09 | |||
| JPH06208760A | 1994-07-26 |
Other References:
See also references of EP 1204111A4
Attorney, Agent or Firm:
Sanada, Tamotsu (Kichijoji-honcho 1-chome Musashino-shi Tokyo, JP)
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