| 摘要 |
PROBLEM TO BE SOLVED: To perform each kind of reproduction related with each music (main data) included in plural music collections (main data aggregate) in one recording medium while maintaining the aggregate so called the music collection. SOLUTION: Plural main data constituting a main data aggregate such as a music collection and aggregate management data (a list ID, music collection management data, music management data) for managing the plural main data as the main data aggregate are both transferred from a recording and reproducing device to a portable device. Then, the plural main data (for example, music data) transmitted and recorded in the recording medium are reproduced and managed by the aggregate management data so that the reproduction can be realized while the concept of the music collection or the like is maintained, in the portable device. |
