Bonding Contents On Separate Storage Media

Abstract

Local storage on player instruments provides the ability for adding further amendments and most recent supplements to the optical disc content. A problem arising with this technically applicable possibility is the protection of copyrights bound to disc and supplement data. The present invention describes a technique to ensure a security framework that is able to handle this, by creating a virtual file system by merging optical disc data and local storage data based upon a common identifier.

Description

FIELD OF THE INVENTION[0001]This invention relates to a method and an apparatus for securely binding contents on a local storage medium to contents on a removable storage medium. In particular, the removable storage medium is a read-only optical disc.BACKGROUND[0002]Future optical disc formats will demand local storage on the player instruments. This is because content, carried e.g. on a read-only optical disc, very soon becomes outdated, and the content producing studios intend to increase the attractiveness of their products. Local storage on player instruments provides the ability for adding further amendments and most recent supplements to the optical disc content, without increasing the disc production costs, as would be necessary for writable discs. When connected to the Internet, it is possible to download supplements to the local storage, or to replace content of the read-only disc. E.g. it is possible to replace an outdated movie trailer by a new one, or to supplement disc ...

AI Technical Summary

Benefits of technology

[0005]The present invention describes a technique to ensure a security framework that is able to handle the described generalized scenario. Advantageously, it includes also cases in which applications from different authors are located on a single optical disc, e.g. DVD, Blu-ray disc or the like.

Problems solved by technology

This is because content, carried e.g. on a read-only optical disc, very soon becomes outdated, and the content producing studios intend to increase the attractiveness of their products.

A problem arising with this technically applicable possibility is the protection of copyrights bound to disc and supplement data.

This is a security risk, because even when data access is restricted, content becomes visible to foreign applications.

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