摘要:
An information recording apparatus (200) is provided with: a recording device (353) for recording data onto an information recording medium (100) being provided with a first recording layer (L0) and a second recording layer (L1); a first controlling device (354) for controlling the recording device to record the data into each of the first recording layer and the second recording layer; a forming device (354) for forming a compatibility area (106, 109, 116, 119) for realizing reproduction compatibility of the information recording medium on an information recording apparatus, following the data recorded in each of the first recording layer and the second recording layer; and a second controlling device (354) for controlling the recording device to record the data into the formed compatibility area if the data is recorded after the compatibility area is formed.
摘要:
An optical disc (100) is provided with a recording region where prescribed clock information (WBL) is preformatted for recording. The clock information is (i) included in a first frequency band that is definable by a first reference frequency (Fstd) (that is impossible for a conventional reproducing device to detect by a detecting method based on a self-correlation) and is (ii) defined by a frequency that is integer times the first frequency.
摘要:
A recording medium comprises pairs of groove tracks and land tracks provided side by side while being bent periodically, a plurality of land prepits previously formed on the land tracks and carrying information about the groove tracks, and a recording layer formed on at least the groove tracks and the land tracks. The land prepits have a radius of mean curvature smaller than a radius of mean curvature of sides of the groove tracks in land-prepit absent regions of the land prepits and are defined by curved surfaces continuously extending from the sides of the groove tracks. Those sides of the groove tracks which face the continuous curved surfaces of the land prepits are curved surfaces that stricture the groove tracks.
摘要:
An information recording medium (100) is provided with: a record information area (106) to record therein record information; an edge portion area (104, 108, 109) which is located in at least one edge portion of the record information area; and a flag area (121) to record therein a first pre-record flag for indicating whether or not predetermined pre-information is pre-recorded in at least one portion of the edge portion area.
摘要:
An information recording medium (100) is provided with: a record information area (106) to record therein record information; an edge portion area (104, 108, 109) which is located in at least one edge portion of the record information area; and a flag area (121) to record therein a first pre-record flag for indicating whether or not predetermined pre-information is pre-recorded in at least one portion of the edge portion area.
摘要:
An information recording medium (100) is provided with: a record information area (106) to record therein record information; an edge portion area (104, 108, 109) which is located in at least one edge portion of the record information area; and a flag area (121) to record therein a first pre-record flag for indicating whether or not predetermined pre-information is pre-recorded in at least one portion of the edge portion area.
摘要:
An information recording device is used for recording record information in an information recording medium at least including a first recording layer capable of forming a first recording area and a second recording layer capable of forming a second recording area. The information recording device includes: write elements; acquisition elements for acquiring offset information indicating a relative shift; calculation elements for calculating an address (“Y′=Inv Y−α”) indicating a second boundary point opposing to a first boundary point according to the offset information; and control elements for controlling the write elements so as to write record information (i) while making the first boundary point a recording end or start position and (ii) making the second boundary point indicated by the calculated address a recording start or end position.
摘要:
An information recording device is used for recording record information in an information recording medium at least including a first recording layer capable of forming a first recording area and a second recording layer capable of forming a second recording area. The information recording device includes: write elements; acquisition elements for acquiring offset information indicating a relative shift; calculation elements for calculating an address (“Y′=Inv Y−α”) indicating a second boundary point opposing to a first boundary point according to the offset information; and control elements for controlling the write elements so as to write record information (i) while making the first boundary point a recording end or start position and (ii) making the second boundary point indicated by the calculated address a recording start or end position.
摘要:
In a recording disc, a straight groove (31) and a position determining pit (33) are formed in an inner circumference area (21), and a straight groove (34) and an over-run preventing pit (36) are formed in an outer circumference area (22), and only a straight groove (37) is formed over the entire middle area (23).
摘要:
In a recording disc, a straight groove (31) and a position determining pit (33) are formed in an inner circumference area (21), and a straight groove (34) and an over-run preventing pit (36) are formed in an outer circumference area (22), and only a straight groove (37) is formed over the entire middle area (23).