Patent ID: 6795383
Filing Date: 2004-09-21
Classification: G11B

Abstract:
An optical disc as a recording medium for storing at least one audio object coded in one of a variable bit rate coding mode and a constant bit rate coding mode and management information for managing reproduction of the audio object, whereina) the audio object comprises a plurality of units each having a predetermined playback duration, each unit having the same playback duration except for a last one of all of the units in the audio object, b) the management information includes path information which defines at least one reproducing interval of the audio object specified by time stamp information indicative of a time when the audio object is reproduced, and indicates a reproducing sequence of each reproducing interval, coding mode information indicative of a coding mode of each audio object, and map information provided for each audio object, the map information for converting the time stamp information specifying the reproducing interval of the audio object into an address on the optical disc storing the unit of the audio object to be reproduced at the time indicated by the time stamp information, and c) the map information comprises information about a data size of the unit, the information about the data size of the unit including information about a data size of each unit when the coding mode of the corresponding audio object is the variable bit rate coding mode, and only information about a data size of the last one of the units included in the audio object and information about a data size of one of residual units except for the last unit when the coding mode of the corresponding audio object is the constant bit rate coding mode.