Hitachi-lg Data Storage, Inc.

Hitachi Consumer Electronics Co., Ltd.

Shimpei Usui

Toshihiro Kato

Masayuki Kobayashi

Koji Yamasaki

Shinichi Shimoda

Haruki Matono

Data recording and reproduction systems, apparatus, and methods provide efficient recording of and reproduction from storage media having multiple surfaces. In particular, a grouping processing unit groups data based on several factors. The grouped data can then be efficiently stored on storage media having multiple sides to increase the efficiency of storage and retrieval of such data. For example, data belonging to the same group is not stored on two surfaces of the same storage media to avoid having to remove and reverse the direction of the storage media in order to store data on or retrieve data from the other side of the storage media.

System and server for efficient data recording on and reproduction from storage media having multiple surfaces

In a library apparatus, it is not considered that eliminated is an operation for reversing a direction of a double-sided readable/writable recording medium. In the library apparatus having a function of transporting and loading a recording medium from a recording medium storage unit to a recording and reproducing unit through a recording medium transportation unit, a direction in which an unrecorded recording medium is first loaded in the recording and reproducing unit is afterward treated as a front surface, and a direction opposite to the above direction is treated as a rear surface.

Library apparatus

A recording/reproducing apparatus, for producing a virtual disc independent upon a host PC, and for managing virtual discs with an easy operation, comprises a CPU, a memory, a storage I/F, an external I/F, a device portion (DP) controller portion, a virtual device portion (VDP) controller portion, a virtual serial ATA, a virtual ATAIP, and at least two (2) or more numbers of recording/reproducing apparatuses, wherein it is notices to a HOST PC that a device is connected to the device portion when a virtual disc is produced, and the virtual disc is cut off and also information corresponding thereto is deleted when taking out or an order of taking out is made from the HOST PC.

Growing community of inventors

Yokohama, Japan

Shimpei Usui