1. A recording apparatus for recording data onto a recording medium having at least one recordable area and at least one recorded area simultaneously, and a control table area, said recorded area and said recordable area including either one continuous segment respectively or a plurality of discrete segments respectively, said control table area managing a start address and an end address of said segment or each of said plurality of segments and link information for linking said plurality of segments if said recorded area and said recordable area include said plurality of segments, said recording apparatus comprising: data reading means for reading the data from said recording medium; storing means for storing said control table data read from said control table area by said data reading means; recording start address calculating means for reading a start address indicating a start position of a recordable segment from said control table data stored in said storing means, and calculating a recording start address in accordance with said start address so as to provide a guard band between said start address and said recording start address for guarding the data of said recorded area; and control means for recording data onto said recording medium based on said recording start address.