Hitachi, Ltd.

Akira Okushi

Tamotsu Ito

Hiroyuki Hayakawa

Susumu Yoshida

Toshihiro Kato

Atsihiro Ohno

Atsuhiro Ohno

Kensei Hayakawa

A content access method and apparatus includes decompressing an input stream read from a storage medium to produce an output signal. The output signal is then multiplexed with timing information different from the timing information contained in the input stream.

Digital information processing method

Method and apparatus for digital information processing

Write-once read-many disks have a directory for file management in every session and files existing in other sessions can be managed in this directory. For write-once read-many disks for music use, however, there is no directory for file management and it has been impossible to access a session and reproduce music in other session. The present invention enables music CDs to take full advantage of multisession recording and realizes multisession-formatted music CDs wherein TOCs (Table of Contents) are recorded in the lead-in areas of the multiple sessions, each TOC in which the information for managing pieces of music (tracks) in other sessions has been registered.

Method and apparatus for information recording medium

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Ohmiya, Japan

Akira Okushi