Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Daisuke Shimoda

Motoshi Ito

Masaru Kaida

Yoshihisa Takahashi

Naohiro Kimura

An information reproduction apparatus includes plural magazines in which optical discs are set, plural drives for performing recording and reproduction on an optical disc set therein, a changer mechanism that transports a magazine between its setting position and one or more drives and mounts and remove a prescribed optical disc or discs in and from the one or more drives by performing either one of a single move process and a multi-move process, and a controller. The controller judges whether to conduct the single move process or the multi-move process based on a reading data list and use statuses of the respective drives.

Information reproduction method and information reproduction apparatus

An optical disc apparatus includes: a controller configured to acquire information of an access result and access positions on an optical disc when an optical disc drive unit configured to optically access an optical disc optically accesses the optical disc; and a storage configured to store the information acquired by the controller.

Optical disc apparatus

The controller selects one command of the plurality of commands included in the command list. The controller selects one magazine that stores therein one recording medium designated by the one selected command, based on the magazine information, the controller moves the one selected magazine between the storing position of the one selected magazine and the plurality of recorder and player apparatuses using the carrier mechanism. The controller extracts all commands designating recording media stored in the one selected magazine, from the command list, based on the magazine information. The controller moves all the recording media designated by the extracted commands between the one selected magazine and the plurality of recorder and player apparatuses using the carrier mechanism.

Changer apparatus for data library apparatus capable of moving recording media between storing position, and recorder and player apparatus

A process of reproducing information according to the present invention includes: reproducing record data recorded on an information-recording medium including a data area for recording the record data, and a defect control area for recording defect information of the data area; storing the defect information in a storage unit; and reducing a storage area of the storage unit which is used for storing the defect information.

Information reproduction device and information reproduction method

A recording apparatus which records information on a write once recording medium sequentially including a user data area, a first management information area, an indicator area and a second management information area on a recording layer thereof. The recording apparatus includes an optical head; and a control section for instructing the optical head to record information. The control section instructs to record management information in the first management information area; instructs to record indicator information indicating whether or not the management information has been recorded, in the indicator area; and instructs to record the same management information as recorded in the first management information area, in the second management information area.

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Osaka, Japan

Daisuke Shimoda