[en] The system of programs that realizes a log-book on the basis of direct access files containing a history of processinthe chamber pictures is described. The organization of processing the film information in the framework of conventional INDEX system is considered. Its disadvantages which hamper the program application at the JINR are pointed out. The organization of the processing of film information from the JINR liquid hydrogen chambers using the catalogue of processed events (CPE) is described. The CPE structure and stored information are described in detail. The CPE in organized as a direct access file that provides a fast reading of information for one roll. The basic criteria used to indentify events in the process of their storage on the CPE are presented. The developed STATUS system is used in experiments performed on the VPK-100 and ''LUDMILA'' bubble chambers