Abstract: A system of recording or reading data are discussed. According to an embodiment, the system includes: a host device transmitting a write or read command and data to be written or receiving data based on the read command; and a recording/reproducing device, operatively coupled to the host device via interface, controlling a write or read operation in response to the write or read command the from the host device. The recording/reproducing device includes, a pickup for writing or reading data to or from medium, and a controller for determining whether the data requires a real time recording or producing, controlling a recording or reading operation such that a defective block is replaced with a spare block of the spare area, based upon the determination.

Abstract: A recording medium, such as a high-density and/or optical recording medium including segment information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection, data management and/or reproduction compatibility.

Abstract: A recording medium, and a method and apparatus for recording management information on the recording medium are discussed. According to an embodiment, the invention provides a method of recording management information on a recording medium, the recording medium including a temporary defect management area (TDMA) and a final defect management area (DMA), the DMA including a defect list area, the method comprising: recording, in the TDMA, defect list information produced while the recording medium is in use, and recording, in the defect list area of the DMA, the latest defect list information included in the TDMA when the recording medium is to be finalized, wherein the defect list area of the DMA includes a plurality of recording units, and the latest defect list information is recorded on at least one of the recording units of the defect list area.

Abstract: A method for recording information on a computer-readable medium and a computer-readable recording medium having a first area for storing a plurality of access control data in a recording unit, each of the access control data having a data structure to control writing to and/or reading from the computer-readable recording medium and a second area for storing status information indicating status of the access control data, per the recording unit.

Abstract: A method and device for managing a recording medium including a non data area having a final defect management area and a data area having a user data area and a spare area. The method includes: (a) recording a defect list onto one or more recording-units of a temporary defect management area allocated to one of the non data area and the spare area, and recording position information of the defect list onto the temporary defect management area, the position information containing one or more defect list pointers which indicate position of the one or more recording-units containing the defect list; and (b) if a recoding-unit is defective, re-recording defect list data onto another recording-unit, and recording updated position information containing a defect list pointer indicating a position of the another recording-unit instead of a defect list pointer indicating a position of the defective recording-unit.

Abstract: A write-once optical recording medium, a method for allocating a defect management area of the write-once optical recording medium, and a method for allocating a spare area of the write-once optical recording medium are provided. A method of managing defects on a write-once optical recording medium having at least one recording layer includes the steps of allocating at least one temporary defect management area having a fixed size and at least one temporary defect management area having a variable size to said optical recording medium, respectively, recording defect management information on the at least one temporary defect management area having a fixed size and the at least one temporary defect management area having a variable size; and using the at least one temporary defect management area having a fixed size and the at least one temporary defect management area having a variable size is provided herein.

Abstract: A write once optical recording medium and a method and apparatus for storing and recovering defect management information to and from the write once optical recording medium are provided. The recording medium includes at least one recording layer, and a data area on the recording layer. The data area includes at least one spare area and a user data area. The spare area contains at least one replacement cluster, each of the replacement clusters storing therein address information of a corresponding defective cluster.

Abstract: A recording medium having at least one control data area storing control data in a recording unit. The control data may be used for managing an access to the recording medium. The medium having at least one management area storing status information for the control data area, wherein an invalid recording unit in the control data area is skipped and next available recording unit is used.

Abstract: In an embodiment of the method of over-writing a recording medium, if data for writing on the recording medium is to be written on a recorded portion of a user data area of the recording medium, an unrecorded portion of the recording medium is selected as a replacement portion for recording the data and the data is recorded in the replacement portion.

Abstract: The data structure on the recording medium includes a temporary defect management area storing a data block. The data block includes a space bit map and a temporary definition structure. The space bit map indicates recordation status of the data area, and the temporary definition structure provides a pointer to the space bit map.

Abstract: A write-once optical disc, and an apparatus and method for recording management information on the optical disc are provided. The disc includes at least one recording layer, a plurality of temporary defect management areas (TDMAs) on the at least one recording layer, and a plurality of defect management areas (DMAs) on the at least one recording layer. At least one of the TDMAs includes first and second indicators. The first indicator indicates which TDMA is an in-use TDMA, and the second indicator indicates whether or not the recording medium is closed.

Abstract: A recording medium, such as a high-density and/or optical recording medium including segment information recorded thereon, and apparatus and methods for recording to and reproducing from the recording medium, in order to improve data protection, data management and/or reproduction compatibility. The recording medium may contain at least one segment area which is an area on the disc controlled by a plurality of valid PACs and if the designated segment areas overlap with one another, control information of the respective PACs which control the overlapped area may be applied to control the overlapped area.

Abstract: A method and apparatus for managing a defective area on a optical recording medium, e.g., of writable once type, permits more efficient writing and management of defect list information or temporary defect list information for managing the defective area in a minimum recording size. The method includes writing data in a defective area existing on a high density optical disc, e.g., such as a BD-WO, in a spare area in place of the defective area, producing defect list information for access to the data replacement written in the spare area and writing in a particular area for defect management. The defect entries actually corresponding to the replacement written data, and writing location information of the next available spare area are written and managed as defect list information for management, or the writing location information of a location where replacement writing is possible is written and managed as defect definition structure information.

Abstract: A device and method of reproducing and/or recording data onto a write once recording medium, the recording medium having a data area and a management area, the data area having a spare area. The recording method include: performing a replacement-recording by recording data requested to be recorded in a specified area onto a replacement area in the data area when the specified area is defective or contains data recorded thereon; and recording onto the management area a pair of consecutive entries for managing the replacement-recording when a size of the specified area corresponds to a plurality of consecutive recording-units. One of the pair of consecutive entries includes start address information of the specified area and start address information of the replacement area and another of the pair of consecutive entries includes end address information of the specified area and end address information of the replacement area.

Abstract: A method of managing overwrite and a method of recording management information on an optical disc write once can make it possible to perform a logical overwrite on the disc and thus heighten the use efficiency of the disc. The method includes replacement-recording data which is requested to be overwritten in a specified area of the disc where recording is completed in another data area physically separated from the specified area in the disc, and producing and recording management information for reproducing the physically replacement-recorded data.

Abstract: A write once optical recording medium and a method and apparatus for storing and recovering defect management information to and from the write once optical recording medium are provided. The recording medium includes at least one recording layer, and a data area on the recording layer. The data area includes at least one spare area and a user data area. The spare area contains at least one replacement cluster, each of the replacement clusters storing therein address information of a corresponding defective cluster.

Abstract: A write-once optical disc and a method and apparatus for recording management information on the optical disc are provided. The optical disc includes at least one recording layer and a plurality of temporary defect management areas (TDMAs) on the at least one recording layer. At least one of the TDMAs includes an indicator indicating which one of the TDMAs has an in-use status.

Abstract: A write-once optical disc and a method and apparatus for recording management information on the optical disc are provided. The optical disc includes at least one recording layer and a plurality of temporary defect management areas (TDMAs) on the at least one recording layer. At least one of the TDMAs includes an indicator indicating which one of the TDMAs has an in-use status.

Abstract: A write-once optical recording medium, a method for allocating a defect management area of the write-once optical recording medium, and a method for allocating a spare area of the write-once optical recording medium are provided. A method of managing defects on a write-once optical recording medium having at least one recording layer includes the steps of allocating at least one temporary defect management area having a fixed size and at least one temporary defect management area having a variable size to said optical recording medium, respectively, recording defect management information on the at least one temporary defect management area having a fixed size and the at least one temporary defect management area having a variable size; and using the at least one temporary defect management area having a fixed size and the at least one temporary defect management area having a variable size is provided herein.

Abstract: A recording medium, and a method and apparatus for manage the recording medium are disclosed. A method for managing a recording medium including a plurality of recording layers, according to an aspect of the present invention, comprises detecting a defect on a first area of a first recording layer of the recording medium; recording first defect management information for the first area in a management area of the recording medium; and recording, in the management area, second defect management information for a second area of a second recording layer, wherein the second area is in a location physically corresponding to that of the first area.