Digital signal reproduction methods and apparatus

摘要

An audio signal may be reproduced during high-speed reproduction of a compressed video signal. A digital signal in which a plurality of digital signal types including an audio signal are multiplexed and contained in blocks as the smallest reproduction unit of video object units (VOBU) contains a compressed video signal pack (V_PCK) which has been compression-coded by way of predictive coding in the time axis direction and an audio signal pack (A_PCK). At least a part of reference picture data of the compressed video signal in the VOBU is reproduced simultaneously with an audio signal contained in a continuous area (HS) containing the aforementioned part of the reference picture data in the aforementioned smallest reproduction unit. <IMAGE>