| 摘要 |
<p>A storage medium, in which deletable digital content has been previously stored on condition that the digital content is deleted if a user determines the digital content to be unnecessary, and is maintained and used if the user determines the digital content to be necessary, and which can be attached to and detached from (or can be fixed to) a digital content player. The storage medium includes a storage part in which the digital content has been deletably stored prior to the user's purchase of the storage medium, a coupling part (or fastening part) which allows the storage medium to be attached to and detached from the player, and an input/output part which inputs and outputs data in conjunction with the player.</p> |
