Patent ID: 6470085
Filing Date: 2002-10-22
Classification: G06F,G11B

Abstract:
An article of manufacture comprising:a computer-readable medium having an application package embodied therein for permitting a system with application play and/or execution capability to play an application contained in the application package (also referenced herein as â€œsaid volumeâ€ ), the application package comprising: secured representations of at least one application, said secured representations having been secured by an encryption key; and volume control data for use in controlling said system, wherein said volume control data include: additional control data which are added at a time of distribution of said volume after manufacturing said volume, said additional control data including: a user's public key-encrypted version of said encryption key; mode codes which are assigned to said volume or said at least one application and each indicate a play mode associated with one of said volume or said at least one application to which the mode code is assigned; and if necessary, limit values associated and used with said respective mode codes and indicating limitations in use of said volume or said at least one application, whereby each of said at least one application is played or executed in a manner defined by the mode code associated therewith.