Patent ID: 7733746
Filing Date: 2010-06-08
Classification: G11B

Abstract:
1. A data storage method for reading, from a recording medium, a plurality of pieces of audio data for execution of playback by a playback device, with a plurality of pieces of management information each corresponding to one of the pieces of audio data, and storing the read pieces of audio data into a storage unit of the playback device, the storage unit having a management information area for storing management information and an audio data area for storing audio data, the method sequentially comprising: a default setting step of setting a capacity of the audio data area by a control unit of the playback device, a management information storing step of sequentially storing pieces of read management information and storing specifying information specifying a storage location of each of the pieces of read management information into the management information area of the storage unit; a re-setting step of decreasing the capacity of the audio data area if the management information area becomes full before all pieces of read management information are stored; and an audio data storing step of storing the pieces of read audio data into the audio data area having the capacity effective upon completion of the reading of management information from the recording medium, wherein data space available for each piece of management information stored in the management information area of the storage unit is variable according to an amount of information included in each piece of management information.