Method and devices for copy protection, copy protected record carrier

A record carrier, comprising:

• a plurality of sectors storing audiovisual data or audio data, the record carrier having a file system;
• a plurality of further sectors storing additional audiovisual data or additional audio data;
• a first file of the file system, the first file referencing a first part of the plurality of sectors and a further first part of the plurality of further sectors, such that when the first file is completely rendered by a playback device for the record carrier, a respective first part of the audiovisual data or audio data and a respective further first part of the additional audiovisual data or additional audio data is reproduced;
• a second file of the file system, the second file referencing a second part of the plurality of sectors and a further second part of the plurality of further sectors, such that when the second file is completely rendered by a playback device for the record carrier, a respective second part of the audiovisual data or audio data and a respective further second part of the additional audiovisual data or additional audio data is reproduced;
• program instructions, which when executed by the playback device control the playback device to switch between reading the first file and the second file, wherein, in case the record carrier is an original, the switching is controlled such that only the plurality of sectors are read and none of the further sectors such that none of the additional audiovisual data or additional audio data is reproduced.

A method for reproducing content stored on a copy protected record carrier, the record carrier comprising

• a plurality of sectors storing audiovisual data or audio data, the record carrier having a file system;
• a plurality of further sectors storing additional audiovisual data or additional audio data;
• a first file of the file system, the first file referencing a first part of the plurality of sectors and a further first part of the plurality of further sectors, such that when the first file is completely rendered by a playback device for the record carrier, a respective first part of the audiovisual data or audio data and a respective further first part of the additional audiovisual data or additional audio data is reproduced;
• a second file of the file system, the second file referencing a second part of the plurality of sectors and a further second part of the plurality of further sectors, such that when the second file is completely rendered by a playback device for the record carrier, a respective second part of the audiovisual data or audio data and a respective further second part of the additional audiovisual data or additional audio data is reproduced;
• program instructions, which when executed by the playback device control the playback device to switch between reading the first file and the second file, wherein, in case the record carrier is an original, the switching is controlled such that only the plurality of sectors are read and none of the further sectors such that none of the additional audiovisual data or additional audio data is reproduced.

A device adapted to reproduce content stored on a copy protected record carrier, the record carrier comprising

• a plurality of sectors storing audiovisual data or audio data, the record carrier having a file system;
• a plurality of further sectors storing additional audiovisual data or additional audio data;
• a first file of the file system, the first file referencing a first part of the plurality of sectors and a further first part of the plurality of further sectors, such that when the first file is completely rendered by a playback device for the record carrier, a respective first part of the audiovisual data or audio data and a respective further first part of the additional audiovisual data or additional audio data is reproduced;
• a second file of the file system, the second file referencing a second part of the plurality of sectors and a further second part of the plurality of further sectors, such that when the second file is completely rendered by a playback device for the record carrier, a respective second part of the audiovisual data or audio data and a respective further second part of the additional audiovisual data or additional audio data is reproduced;
• program instructions, which when executed by the playback device control the playback device to switch between reading the first file and the second file, wherein, in case the record carrier is an original, the switching is controlled such that only the plurality of sectors are read and none of the further sectors such that none of the additional audiovisual data or additional audio data is reproduced.

A device adapted to manufacture a copy protected record carrier, comprising:

• a receiving unit adapted to receive audiovisual data or audio data to be stored in a plurality of sectors of a record carrier, the record carrier having a file system, the receiving unit further being adapted to receive additional audiovisual data or additional audio data to be stored in a plurality of further sectors of the record carrier;
• a data processor adapted to generate a first file of the file system to be stored on the record carrier, the first file referencing a first part of the plurality of sectors and a further first part of the plurality of further sectors, such that when the first file is completely rendered by a playback device for the record carrier, a respective first part of the audiovisual data or audio data and a respective further first part of the additional audiovisual data or additional audio data is reproduced, the data processor being further adapted to generate a second file of the file system to be stored on the record carrier, the second file referencing a second part of the plurality of sectors and a further second part of the plurality of further sectors, such that when the second file is completely rendered by a playback device for the record carrier, a respective second part of the audiovisual data or audio data and a respective further second part of the additional audiovisual data or additional audio data is reproduced.