A method for generating additional information for guaranteeing seamless playback of data streams, a recording medium for storing the information, and recording, editing andor playback apparatus using the same are provided. The adaptive recording method allows accurate recording control by updating light output control data with respect to a power setting value according to variation in the output characteristic of the laser diode. A node transmits a channel request, which is received by the answer channel. The application server computer uses a high level protocol to pass the XML document to a back office server which has access to a business’ enterprise resource planning database.