Patent ID: RE44223

Claim:
Method A method for processing information parts of recorded data recorded on a recording medium , wherein each information part is provided with an information part version number, said information part version number indicating the a version of a standard to which the information part complies, wherein 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 wherein different processing types being are available for processing , the method comprising the steps of : reading, from the recording medium, 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 if the read information part version number is higher than the processing version number, permitting only the following processing types to be performed: reading the information part but not appending or editing the information part thereby preventing destruction of an information part characteristics that complies comply with a version of the standard having the information part version number, but does do not comply with a version of the standard having the processing version number, or editing the information part and providing the information part with a new information part version number, wherein the information part version number is decreased in case that during processing an information part has such characteristics have been removed, which makes compliance to with a version of the standard having the information part version number necessary, processing the information part using said allowed processing types, and recording the processed information part on the recording medium.