Method for processing information parts of recorded data
First Claim
1. ) Method for processing information parts of recorded data wherein each information part is provided with an information part version number, said information part version number indicating the version of a standard to which the information part complies, each information part may have a different version number, and processing being performed in compliance with a version of said standard being indicated by a processing version number, for processing different processing types being available, the method comprising the steps of reading the information part version number of an information part, comparing the read information part version number with the processing version number, if the read information part version number is lower than or equal to the processing version number permitting every processing type to be performed, else permitting only some processing types to be performed, processing the information part using said allowed processing types.
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Abstract
The method, device and medium according to the invention provide (restricted) forward compatibility to higher device/medium versions. It is provided a defined behaviour of an older device, if it has to handle information of a higher version number than supported by itself. A device according to the invention is able to provide restricted (e.g. playback) functionality of its records to older devices. So, a newer device is assured, that older devices will not damage the additionally stored information: This is important, because only a newer device is able to understand these additional information, and to process it correctly.
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Citations
8 Claims
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1. ) Method for processing information parts of recorded data wherein each information part is provided with an information part version number, said information part version number indicating the version of a standard to which the information part complies, each information part may have a different version number, and processing being performed in compliance with a version of said standard being indicated by a processing version number, for processing different processing types being available, the method comprising the steps of
reading the information part version number of an information part, comparing the read information part version number with the processing version number, if the read information part version number is lower than or equal to the processing version number permitting every processing type to be performed, else permitting only some processing types to be performed, processing the information part using said allowed processing types.
Specification