INFORMATION PROCESSOR AND METHOD, RECORDING MEDIUM, PROGRAM AND DATA

摘要

PROBLEM TO BE SOLVED: To display contents-related information on the basis of a tree structure while using less processing power. SOLUTION: In a process of step S11, any of consecutive natural numbers starting from one is given to each group as its group number. In a process of step S12, 1 depth information is added to the group whose group number is 1. In a process of step S18, when the depth information of the group whose group number is N (natural number) is (a) (natural number), depth information with a natural number of not less than one nor more than (a)+1 is added to the group whose group number is N+1. Applicable to a portable player that selects and reproduces desired contents from a number of contents. COPYRIGHT: (C)2005,JPO&NCIPI