Method of ensuring synchronous presentation of additional data with audio data recorded on a rewritable recording medium

摘要

A recording medium and a method and apparatus for managing data are provided. The method includes recording additional data in a data file separate from a file containing main data and recording navigation information that links the main data and the additional data. The additional data are segmented into a plurality of predetermined units, each of the predetermined units including time information indicating a presentation start time of the corresponding unit.