| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously achieve reduction in a memory capacity in a memory device that stores video data and reduction in a response time to a request of download, by controlling versatility of a format depending on skills of singing for video data mapped to a singing animation data created by a singer.SOLUTION: When a value of rating data stored in memory means 65 is equal to or higher than a predetermined threshold, converted video data creating means 63 converts a stored video data into a format other than the original format of the stored data so as to create a new video data having the same contents as the original video data. When a video data is newly created by the converted video data creating means 63, the memory means 65 maps the video data to a music ID and a user ID corresponding to the video data, and stores the mapped information.SELECTED DRAWING: Figure 1 |
