| 摘要 |
PROBLEM TO BE SOLVED: To provide a program for determining medium, a recording medium, a program reading method, an information processing system, etc., which disable an illegally copied disk to be used even by a conventional optical disk drive and limit its usage. SOLUTION: The program is stored in a read-only area of a hybrid CD-R disk 1 together with an application program and read by an information processor 3 before an application program is read; if characteristic information assigned to a manufacture and supply source recorded in a zigzag groove previously formed on the hybrid CD-R disk 1 is not obtained, the application program is inhibited from being read or allowed to be read and when the characteristic information is obtained, the characteristic information is compared with decision making information to decide whether the hybrid CD-R disk 1 is adequate, thereby allowing the application program to be read when so or inhibiting it from being read when not. COPYRIGHT: (C)2003,JPO |
