摘要:
The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of: determining whether or not input data is AV data; detecting a defective sector existing in an assigned data recording area; when the input data is AV data while a defective sector is detected in the data recording area, allocating a defective extent including the defective sector; recording AV data in continuous sectors while skipping the defective extent; and allocating an area of continuous sectors where only the AV data is recorded as one AV extent.
摘要:
To record video data or audio data on an optical disc on which a defective area exists, there is a method of determining an allowable number of defects in proportion to a recording size and skipping the defective area to use an adjacent area thereto. This method has a problem that the size of the recording area becomes larger by an equivalent of the skipped defective area so as to take a longer time for recording a file, and so convenience for a user is damaged. The size of the defective area allowed in a recording area is limited regardless of the size of the recording area.
摘要:
A simultaneous recording and reproduction method for recording a first real time data in an information recording medium while reproducing a second real time data recorded in the information recording medium, including the steps of: searching for unallocated areas on the information recording medium and allocating at least one unallocated area, each having a size which is greater than or equal to a minimum size Y, as an area in which the first real time data is to be recorded: selecting at least one area in which each area includes a non-used area having a size which is less than or equal to K from among the allocated at least one area, wherein K denotes the size of non-used area which is allowed within a window having the same size as the minimum size Y: recording the first real time data in the selected at least one area; and reading the second real time data from at least one area in which the second real time data has been recorded, whereby each of the at least one area has a size which is greater than equal to the minimum size Y, wherein the minimum size Y is determined to enable the simultaneous recording and reproduction, even if the non-used area having a size of K exists in each of two adjacent areas where data is to be recorded during the recording operations immediately before and immediately after an access operation, or even if the non-used area having a size of K exists in each of two adjacent areas where data is to be read during the reproduction operations immediately before and immediately after an access operation.
摘要:
Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an optical disk. When playing back the thus manufactured optical disk on a reproduction apparatus, the barcode data can be played back using the same optical pickup.
摘要:
An information recording medium including a plurality of sectors of the present invention includes: a first spare area including a spare sector for replacing a defective sector among the plurality of sectors; a defeat management Information area for managing the replacement of the defective sector by the spare sector; and a volume space in which user data can be recorded. The volume space is configured so that a second spare area including a spare sector for replacing a defective sector among the plurality of sectors can be additionally allocated. Location information indicating a location of the second spare area is recorded in the defect management information area.
摘要:
Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an optical disk. When playing back the thus manufactured optical disk on a reproduction apparatus, the barcode data can be played back using the same optical pickup.
摘要:
An information recording medium of the present invention includes: a volume space in which user data is recorded; a spare area including a replacement area which may be used in place of a defective area included in the volume space; and a defect management information area in which defect management information for managing the defective area is recorded. The defect management information includes status information indicating whether the defective area is replaced by the replacement area.
摘要:
An information recording medium of the present invention includes: a volume space in which user data is recorded; a spare area including a replacement area which may be used in place of a defective area included in the volume space; and a defect management information area in which defeat management information for managing the defective area is recorded. The defect management information includes status information indicating whether the defective area is replaced by the replacement area.
摘要:
Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in PCA area of an optical disk. When playing back the thus manufactured optical disk on a reproduction apparatus, the barcode data can be played back using the same optical pickup.
摘要:
An optical disc recording apparatus for recording a video object onto an optical disc. A recording area of the optical disc is divided into a plurality of zones which each include a plurality of adjacent tracks. The optical disc recording apparatus includes: a reading unit for reading from the optical disc the sector information showing data assignment for sectors on the optical disc; a recording unit for recording the video object onto the optical disc; and a control unit for controlling the reading unit and the recording unit. The control unit detects at least one series of consecutive unassigned sectors on the optical disc by referring to the read sector information. Each series has a total size greater than a minimum size and is located within a single zone. The minimum size corresponds to a data amount that ensures uninterrupted reproduction of the video object. The control unit also controls the recording unit to record the video object into the detected series.