A data recording apparatus recording data of a CD on an HDD in a manner such that the content of record in the CD is faithfully accounted for and shortening an operation time for a synchronized ripping operation. The file tracking system actively maintains and updates the database, which includes file information, file location, and unique file address for the plurality of files, by providing interactive communication between the processor, the folder retainers, and the file folders. The created messages contain data and commands used to control the application while the received messages contain data from the application. New set of time slots to be allocated or de-allocated to the tributary are determined. Inside the supporting rope there is at least one optical fibre element fitted in a tubular structure which resists transverse compression, a supporting structure resistant to longitudinal tension being present around the said tubular structure.