A recording apparatus is provided that includes a recording section for recording information onto a recording medium, a file system processing section for managing the information as a file using file system information having a directory hierarchy structure capable of being referenced using a path name, a contents management information processing section for managing the directory and the file using contents management information, and an extension information processing section for managing extension information with respect to the directory and the file. The contents management information includes media object management information for referencing the directory and the file using object reference information obtained by converting the path name, and extended object management information for managing the extension information. The directory and the file are associated with the extension information via the object reference information.