| 摘要 |
PROBLEM TO BE SOLVED: To provide a content extractor which hardly performs overlapped storage of the same content.SOLUTION: The content extractor records broadcasting data on a storage medium, obtains a cue sheet, obtains a ranking list showing the popularity rank of the content, and deletes content of higher order than a high popularity order from the storage medium each predetermined period on the basis of the obtained cue sheet and the obtained ranking list. |
