||This invention relates to a reply appliance for recording media containing information blocks as e.g. a video manager (VMG) in the case of a DVD video .A search means is provided in order to search for a designator as e.g. for a video manager designator (VMG-BZ) of a file which is to be localized in blocks of the recording medium, an evaluation means is provided in order to determine the designator as e.g. a video manager designator (VMG-BZ) of a plurality of following bytes indicating a number of 2048 byte blocks from which the information block as e.g. a video manager (VMG) is compound ,the determined information block being used for data access.