Abstract: An information recording apparatus includes a recording device capable of recording record information onto an information recording medium having a plurality of recording layers; a selecting device for sequentially selecting one recording layer to record therein the record information, such that a recording area of the record information recorded into each of the plurality of recording layers substantially uniformly expands, in accordance with the recording of the record information; a generating device for generating virtual reference information including logical address information on the information recording medium corresponding to the record information on a logical address space such that a recording position of the record information on the logical address space of the information recording medium is in a recording order of the record information onto the information recording medium; and a controlling device for controlling the recording device to record the generated virtual reference information o

Abstract: A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is record data to be recorded or already recorded at a position of a defect in the data area and defect management information (120) including an evacuation source address of the evacuation data, the evacuation data being recorded with one predetermined point which exists in the shared area as a start point, the defect management information being recorded with another predetermined point which exists at a different point from the one point as a start point, in the shared area.

Abstract: An information recording medium includes at least a disc-shaped first recording layer having a first recording track formed for recording record information and a disc-shaped second recording layer having a second recording track formed for recording the record information in the same recording direction as the first recording track of the first recording layer. A second place serving as a reference of a pre-format address for indicating the start position of the data area in the second recording track (position of a circle of address 30000h in the radius direction in the L1 layer) is located at an outer side as compared to a first position serving as the pre-format address for indicating the start position of the data area in the first recording track (position of a circle of address 30000h in the radius direction in the L0 layer) at least by a predetermined first offset amount.

Abstract: An information recording device is provided with a writing device for writing recording information in a first recording layer and a second recording layer of an information recording medium; an acquiring element for acquiring information relating to an offset quantity; and a calculating member for calculating a start position where the recording information can be recorded in the second recording layer, based on the acquired information. The information recording device is also provided with a control unit which controls the writing device to i) write the recording information in the first recording layer along a first recording track, and ii) write the recording information in the second recording layer along a second recording track from the calculated start position.

Abstract: An information recording apparatus records the record data onto an information recording medium, which is provided with wobbled tracks and on which pre-format address information is recorded. The information recording apparatus is provided with: an optical pickup; a detector for detecting a push-pull signal on the basis of an output of the optical pickup; a timing generator for generating a timing signal by detecting the pre-format address information and by detecting a slot unit smaller than a data management unit of the pre-format address information on the basis of a cycle of the push-pull signal; and a system controller for detecting an optimum recording laser power by recording or reproducing a test signal on the tracks while changing a recording laser power on the basis of the timing signal.

Abstract: An information recording medium (100) is provided with: a user data area (108) for recording therein record data; a plurality of temporary defect management areas (104, 105) for temporarily recording therein defect management information (120) which is a basis of defect management for a defect in the data area; and a flag area (111) for recording therein distinction information for distinguishing a temporary defect management area in which the defect management information that is effective is recorded, from the plurality of temporary defect management areas, the distinction information being recorded as a type of a combination pattern of an area set to be in a recorded condition and an area left to be in an unrecorded condition according to a predetermined rule, in the flag area.

Abstract: An information recording apparatus includes: a recording device capable of recording information into a data area of an information recording medium, by irradiating laser light, in conformity with a predetermined error correction method; an optimum-recording-power detecting device for obtaining an optimum recording power of the laser light, by recording test writing data into a data area portion with a length which is equal to or less than an allowable defect length in the predetermined error correction method, within the data area, by using the recording device; and a controlling device for controlling the recording device to record the information into the data area with the obtained optimum recording power.

Abstract: A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is record data to be recorded or already recorded at a position of a defect in the data area and defect management information (120) including an evacuation source address of the evacuation data.

Abstract: A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is record data to be recorded or already recorded at a position of a defect in the data area and defect management information (120) including an evacuation source address of the evacuation data.

Abstract: An information recording medium (100) is provided with: a user data area (108) for recording therein record data; a plurality of temporary defect management areas (104, 105) for temporarily recording therein defect management information (120) which is a basis of defect management for a defect in the data area; and a flag area (111) for recording therein distinction information for distinguishing a temporary defect management area in which the defect management information that is effective is recorded, from the plurality of temporary defect management areas, the distinction information being recorded as a type of a combination pattern of an area set to be in a recorded condition and an area left to be in an unrecorded condition according to a predetermined rule, in the flag area.

Abstract: An information recording medium (100) is provided with: a user data area (108) for recording therein record data; a plurality of temporary defect management areas (104, 105) for temporarily recording therein defect management information (120) which is a basis of defect management for a defect in the data area; and a flag area (111) for recording therein distinction information for distinguishing a temporary defect management area in which the defect management information that is effective is recorded, from the plurality of temporary defect management areas, the distinction information being recorded as a type of a combination pattern of an area set to be in a recorded condition and an area left to be in an unrecorded condition according to a predetermined rule, in the flag area.

Abstract: There is provided an information recording device for recoding information onto an information recording medium including a first recording layer (L0 layer) having a first recording capacity and a second recording layer (L1 layer) having a second recording capacity. The information recording device includes: write means capable of writing information onto the first and the second recording layer; calculation means for calculating a loopback address used when recording information subsequently after the first recording layer and the second recording layer according to the all information amount and the first and the second recording capacity; and control means for controlling the write means so that (I) a first part of the information is written up to this loopback address (1AFFFFh) onto the first recording layer and (II) the remaining second part of the information is written, starting from the corresponding address (E50000h) of the second recording layer corresponding to the loopback address.

Abstract: An information recording medium (100), provided with: a first recording layer (L0 layer) and a second recording layer (L1 layer) in each of which record information can be alternately recorded, at least one of the first recording layer and the second recording layer provided with: an anchor area (AP#1 to 4) which is to record therein anchor information (VRS, AVDP, VAT_ICB) and which is referred to in reading file system information (101, 111) for controlling at least one of recording and reproduction of the record information; and an update area to update and record therein the anchor information.

Abstract: A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is record data to be recorded or already recorded at a position of a defect in the data area and defect management information (120) including an evacuation source address of the evacuation data, the evacuation data being recorded with one predetermined point which exists in the shared area as a start point, the defect management information being recorded with another predetermined point which exists at a different point from the one point as a start point, in the shared area.

Abstract: An information recording medium (100) is provided with: a user data area (108) for recording therein record data; a plurality of temporary defect management areas (104, 105) for temporarily recording therein defect management information (120) which is a basis of defect management for a defect in the data area; and a flag area (111) for recording therein distinction information for distinguishing a temporary defect management area in which the defect management information that is effective is recorded, from the plurality of temporary defect management areas, the distinction information being recorded as a type of a combination pattern of an area set to be in a recorded condition and an area left to be in an unrecorded condition according to a predetermined rule, in the flag area.

Abstract: There is provided an information recording device for recording record information onto an information recording medium having a plurality of recording layers. The information recording device includes: write elements capable of writing record information into the recording layers; control elements for controlling the write elements to write first boundary information or second boundary information (107a-0) having a smaller recording capacity than the first boundary information at the end of record information recorded in one of the recording layers; and detection elements for detecting an empty capacity of the data area in that recording layer. The control elements controls the write elements to write the first boundary information at the end if the empty capacity is equal to or greater than a first threshold value and the second boundary information at the end if the detected empty capacity is smaller than the first threshold value.

Abstract: A write-once-type recording medium (100) on which record data can be recorded only once, provided with: a data area (108) to record therein the record data; and a shared area (104, 105) to temporarily record therein evacuation data which is record data to be recorded or already recorded at a position of a defect in the data area and defect management information (120) including an evacuation source address of the evacuation data.

Abstract: An information detecting apparatus which can surely detect specific information such as a digital watermark in high-speed data stream and can be configured at low cost. The apparatus extracts data including specific information from a high-speed data stream, and detects the specific information in the extracted data at low speed.

Abstract: An information recording medium (100) is provided with: a user data area (108) for recording therein record data; a plurality of temporary defect management areas (104, 105) for temporarily recording therein defect management information (120) which is a basis of defect management for a defect in the data area; and a flag area (111) for recording therein distinction information for distinguishing a temporary defect management area in which the defect management information that is effective is recorded, from the plurality of temporary defect management areas, the distinction information being recorded as a type of a combination pattern of an area set to be in a recorded condition and an area left to be in an unrecorded condition according to a predetermined rule, in the flag area.

Abstract: An information recording medium (100) provided with: a data area (108) to record therein record data; a spare area (109, 110) to record therein evacuation data which is record data to be recorded at a position of a defect in the data area or which is record data recorded at the position; and a temporary defect management area (104, 105) to temporarily record therein defect management information including (120) at least an evacuation source address which is an address of the position and an evacuation destination address which is an address of a recording position of the evacuation data, the evacuation destination address being specified by a first offset address based on one predetermined point in the spare area.