Abstract: A recording medium provided with a lead-in area and a data recording area, wherein position information indicating the position of the key information is stored in the lead-in area and key information to be used for managing the copyrights of content is recorded in the data recording area. As a result, a read device can acquire the key information in the data recording area by referring to the position information in the lead-in area, even if the read device lacks a way of handling a file system to be used in the data recording area. Moreover, software for reproduction of the content can acquire the key information in the data recording area using the file system.

Abstract: An insurance descriptions adjusting system for properly setting an insurance premium. The system comprises an insurance descriptions adjusting method and device, a status data acquiring terminal device, an advice responding terminal device, and advice device, an insurance descriptions adjusting program, a status data acquiring program, an advice responding program, an advice program, and a computer-readable recording medium for recording those programs. Insurance descriptions determined based on a status data describing a state of an insured object are adjusted by using a level of enthusiasm shown by an insurance contractor towards the reacquisition of the status data and a level of enthusiasm shown by the insurance contractor in reducing the risk of an insured object. Accordingly, a proper insurance premium is set for an insured object whose future risks are likely to go lower.