| 摘要 |
<p>A digital data processing device which receives pay digital data through a data recorded medium or over a network and uses it by using license data, characterized in that the device has storage means where use history information about the history of the use of the digital data is stored, and the cumulation of the use of the digital data is monitored by means of the use history information, and transfer of use history information is prompted when the cumulation of the use reaches a predetermined value.</p> |
