Patent ID: 8037074

Claim:
A content type registration apparatus that obtains from a server a content list which is a list of a plurality of contents, each content having a respective index value within a predefined sequence of index values, and which does not contain content types, and content types of the contents, and registers the content type for each index value corresponding to a respective content in the content list, the apparatus comprising: a content type storage unit that registers the content types in association with the index values; a determining unit that determines whether or not a content type of an index value adjacent to a registration target index value within the predefined sequence is registered in the content type storage unit; and a registering unit that registers, when the content type of the adjacent index value is registered in the content type storage unit, the content type of the adjacent index value in the content type storage unit as a content type of the registration target index value instead of obtaining the content type of the registration target index value from the server, and obtains, when the content type of the adjacent index value is not registered in the content type storage unit, a content type of the registration target index value from the server and registers the obtained content type in the content type storage unit.