Abstract: A reproducing apparatus and a recording apparatus capable of reducing time to continuously read and record a plurality of data. A readout order of data of a prescribed size composing data specified by a reproduction command from outside is determined so that all the data of the prescribed size can be continuously reproduced while a head goes and returns once in the radiation direction of a disk. The position of the head in the radial direction of the disk is controlled to continuously reproduce the data of the prescribed size in the readout order. The data of the prescribed size reproduced from the disk via the head is rearranged in a correct reproduction order based on the reproduction command and output.

Abstract: A data storage apparatus and data storage method thereof which enable reduction of the number of maintenance sessions to replace malfunctioning storage means are provided. The data storage apparatus has a plurality of data HDDs; a plurality of error correction HDDs; a data distribution and error code generation device, which distributes and records input data in the data HDDs, and which generates error correction codes from the data according to the number of error correction HDDs and records the error correction codes in the error correction HDDs; and a data restoration device, which restores the data within HDDs in which a malfunction or response delay has occurred, using data and error correction codes read from the remaining HDDs.

Abstract: This invention relates to a reproducing apparatus and a recording apparatus capable of reducing time to continuously read and record a plurality of data. Specifically, a readout order of data of a prescribed size composing data specified by a reproduction command from outside is determined so that all the data of the prescribed size can be continuously reproduced while a head goes and returns once in the radiation direction of a disk. The position of the head in the radial direction of the disk is controlled so as to continuously reproduce the data of the prescribed size in the readout order. The data of the prescribed size reproduced from the disk via the head is rearranged in a correct reproduction order based on the reproduction command and output.

Abstract: There is provided a disk detaching/attaching unit which reduces a load on a disk and a drive source when detaching or attaching the disk. The disk detaching/attaching unit for a magnet chuck includes a plate member which moves in a disk detaching/attaching direction perpendicular to a rotating plane of the disk and having an edge portion which abuts against the vicinity of the center of the disk magnetically chucked on the magnet chuck, and plate member drive means for moving the plate member between a waiting position where the edge portion of the plate member is situated below the chucked disk and a delivery position where the disk is detached and raised up from the magnet chuck so as to detach the disk from the magnet chuck or attach it thereto.