Information recording medium, apparatus and method for recording or reproducing data thereof
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTomoyuki Okada, Kaoru Murase, Kazuhiro Tsuga
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Abstract
This invention provides a recording medium for recording various AV streams, which enables to perform a random access and is suitable for a DVD-RAM or the like, Also provided are an apparatus and a method for accessing the recording medium. The information recording medium stores, as management information, object information for managing an object. The object information includes an access map for managing an MPEG transport stream for each block unit which is comprised of the integer-times number of ECC blocks. The access map has, in addition to predetermined access information for the block, a flag indicating whether the block includes an I-picture or not.
Claims15
An recording medium for recording at least one of video data, comprising:
- video data area storing the video data which includes a plurality of pictures each picture being encoded by one of an inter-picture encoding method and an inter-picture encoding method;
- and
- map information area storing the map information which manages video data for each block, having a fixed data length, the map information including an address information which indicates an address of the block including the picture to be reproduced with each reproduction time and a first map which has flag information indicating whether each block includes at least a part of the intra-picture or not.
Dependencies are inferred from the claim text.