Pay information distribution system

摘要

The progress status of the download later than the actual progress status is displayed on a display unit of a terminal in a period of downloading encrypted music data MD1'.[92% completed] is displayed in a display screen Z2 even though the download of the encrypted music data MD1' is completed in time t3. And, the billing request Creq is transmitted to a distribution and billing server in time t5, and a display screen Z3, showing the download is completed, is displayed on the display unit after the terminal receives the billing request C req.