| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a terminal device and a content data providing device capable of further efficiently acquiring content data. <P>SOLUTION: A client terminal 2 compares owned music list data LD1 showing identification information of music data stored and held by itself with top 50 pieces list data LD2, thereby recognizing identification information of music data that are shown in top 50 pieces list data LD2 but not stored or held in an own hard disk drive 211, and automatically acquires music data corresponding to the recognized identification information from the music data delivery server SV1. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
