| 摘要 |
FIELD: recording media such as disks having control fields and program area. SUBSTANCE: in reading the disk initial position of second control field is determined basing on time information that estimates second control field and is contained in first control information. Data recorded in program area are audio data. Data on attributes controlled by second control field is at least one of group including data on disk name, executive, name and type of programs, identification code number of recording medium in the form of disk, and data message related to program, or program layers and frequency level. First and second control data may be displayed. EFFECT: provision for reading symbolic data dispensing with specialized integrated circuits. 8 cl, 17 dwg
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