Abstract: A recording apparatus for recording data on a rewritable optical recording medium includes a read/write head for reading and recording data, an error corrector for finding and correcting errors in the recorded data read, and a controller for controlling the recording and reading of the data. The recording apparatus is capable of performing fast and efficient examination of formatted recording medium in order to adapt a data recording strategy, so as to increase the efficiency of writing operations.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method including recording user data on a logical area of the disc and, prior to removal of the disc out of a recording/reproducing apparatus, finalizing the disc with a lead-in and lead-out area comprising predefined medium format data. A general purpose area within the logical area for other use than recording of user data, is being reserved. Such a use may be, for example, defect management. Further, the method involves interrupting recording a lead-in area or a lead-out area at predefined splice points whenever a request for user data is made.

Abstract: A device records information in blocks having logical addresses at a physical address in a track on a record carrier. The logical addresses are translated into the physical addresses in dependence of defect management information (52,53,61,64), which includes defect entries indicating locations for replacing defective physical addresses. A read-only state of the record carrier is obtainable via a no-replacement state indicated by substantially none of the defect entries being free for use. The device has a read-only unit for setting the record carrier to the read-only state by reading original replacement information indicating a writable state, storing the original replacement information (60) in a hidden area, and writing defect management information (61) that is modified to the no-replacement state. The record carrier may be re-opened by retrieving the original replacement information (60) from the hidden area.

Abstract: A device for recording records information in blocks having logical addresses at a physical address in a track on a record carrier. The logical addresses are translated into the physical addresses in dependence of defect management information, such as primary and secondary defect lists and remapping tables, maintained in defect management areas (61). The defect management information includes assignment information indicative of assignment of physical addresses in parts of the track to user data areas or to defect management areas. The device has assignment means for dynamically adapting the assignment information in dependence of detected defects (54) by assigning an additional physical address range to an additional defect management area (61). The additional physical address range starts near the detected defect (54). Hence the defect (54) is covered by a defect management area, which reduces the need for remapping.

Abstract: A recording apparatus for recording digital information signals on a removable rewritable disc like recording medium has been proposed. The apparatus comprises writing means (21, 22, 25) for recording the digital information signals and controls means (20) for controlling the recording. The apparatus is capable of performing initialization, formatting and defect management of a rewritable medium. Further, the apparatus is capable of storing first file system data in a user area (UA) and second file system data in a general application area (GAA) on the medium. The control means (20) are adapted to modify defect management data on the medium in order to block write access to UA under control of the first file system. This prevents systems unaware of the second file system data on the medium from modifying contents of UA.

Abstract: A device for recording information records blocks having continuous logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence of defect management information, which includes remapping information indicative for translating a logical address initially mapped to a physical address exhibiting a defect to an alternate physical address in a defect managemen area. The device has a continuous data detection unit (33) for detecting a logically continuous data, and a defect management reorganizing unit (34). The physical addresses of remapped logical addresses in the logically continuous data are determined, and the defect management information is reorganized (61,63,64,65,66) by remapping at least one of the remapped logical addresses to a different defect management area. During read-out the remapped logical addresses in the logically continuous address range are retrieved from a single defect management area.

Abstract: A device for recording information records blocks having continuous logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence of defect management information, which includes assignment information indicative of assignment of physical addresses in first parts of the track to at least one user data area, assignment of physical addresses in second parts of the track to defect management areas and assignment of the defect management information to the defect management areas. A data type of recorded information is detected, in particular the type being streaming for real-time data like digitally encoded video, or nonstreaming for random data like computer data files. The device has defect management area reassignment means for changing said assignment information in dependence of the data type. For example a contiguous defect management layout 54 is converted into a distributed layout 55.

Abstract: A recording apparatus for recording digital information signals on a removable rewritable disc like recording medium has been proposed. The apparatus comprises writing means (21, 22, 25) for recording the digital information signals and control means (20) for controlling the recording. The apparatus is capable of performing initialization, formatting and defect management of a rewritable medium. Further, the apparatus is capable of storing first file system data in a user area (UA) and second file system data in a general application area (GAA) on the medium. The control means (20) are adapted to enlarge GAA and to store the second file system data in it. This increases a number of files in UA, which can be addressed by the second file system data.

Abstract: A recording apparatus for recording digital audio/video signals on a removable rewritable disc like recording medium has been proposed. The apparatus comprises writing means (21, 22, 25) for recording the digital information signals and control means (20) for controlling the recording. The apparatus is capable of performing initialization, formatting and defect management of a rewritable medium. Further, the apparatus is capable of storing data in replacement areas instead of defect areas, which have been determined to be defective according to rules of the defect management. The control means (20) are adapted to re-record data from the replacement areas in the defect areas in order to improve playability of digital audio/video signals stored on the medium.

Abstract: A device for recording records information in blocks having logical addresses in a storage space on a record carrier. The device has an interfacing unit (31) for communicating with a host system by exchanging commands and information, a record carrier status unit (32) for detecting a record carrier update status in which information stored on the record carrier is to be changed, and an update unit (33) for initiating an unmount-mount sequence. The unmount-mount sequence is initiated by the device and starts with an unmount process (42) for, via the interfacing means, forcing the host system to relieve control of the record carrier. Then the device has taken control and performs an update process (44) for said changing of information on the record carrier. Finally the control is returned to the host by a mount process (45) that forces the host system to accept the changed information.

Abstract: The invention relates to a method and a device for random write and overwrite to a write once recordable medium, a method and a device for defect management on a write once recordable medium, a method and a device for undo changes made to a write once recordable medium, and a method and a device for reuse of a used write once recordable medium.

Abstract: A recording apparatus for recording data on a rewritable optical recording medium has been proposed. The apparatus comprises input means (27) for rewriting the data, recording means (21, 22, 25, 28, 29) for recording the data reading means (21, 22, 25, 30) for reading the recorded data, error correction means (30) for finding and correcting errors in the recorded data read and control means (20) for controlling the recording and reading of the data. The recording apparatus is capable of performing fast and efficient examination of formatted recording medium in order to adapt a data recording strategy, so as to increase the efficiency of writing operations.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising recording user data on a logical area of the disc and, prior to removal of the disc out of a recording/reproducing apparatus, finalizing the disc with a lead-in and lead-out area comprising predefined medium format data. A general purpose area within the logical area for other use than recording of user data, is being reserved. Such as use may be for example defect management. Further the method involves interrupting recording a lead-in area or a lead-out area at predefined splice points whenever a request for user data is made.

Abstract: A blank writable disc contains a lead-in area followed by a program area, followed by a lead-out area. When the disc is inserted into a recorder, the disc is initialized by recording control data in a lead-in area. The control data defines a general purpose area (GPA) within the program area of the disc. Then user data is recorded within a user portion of the program area, the user portion being outside of the GPA. After the user data is recorded formatting of the disc begins. The formatting includes recording format data in the user portion of the program area. Then, prior to ejecting the disc from the recording apparatus, if the formatting of the disc is not yet complete, then the disc is finalized by recording additional control data in the lead-in area and in a lead-out area without completing the formatting of the entire disc.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising recording user data on a logical area of the disc and, prior to removal of the disc out of a recording/reproducing apparatus, finalizing the disc with a lead-in and lead-out area comprising predefined medium format data. A general purpose area within the logical area for other use than recording of user data, is being reserved. Such as use may be for example defect management. Further the method involves interrupting recording a lead-in area or a lead-out area at predefined splice points whenever a request for user data is made.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising a short initialization step whereafter a blanc, unformatted medium is ready to receive user data. The initialization step comprises defining a general purpose area on the recording medium which is not intended for recording user data but for defect management and special application programs.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising recording user data on a logical area of the disc and, prior to removal of the disc out of a recording/reproducing apparatus, finalizing the disc with a lead-in and lead-out area comprising predefined medium format data. A general purpose area within the logical area for other use than recording of user data, is being reserved. Such as use may be for example defect management. Further the method involves interrupting recording a lead-in area or a lead-out area at predefined splice points whenever a request for user data is made.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising a short initialization step whereafter a blanc, unformatted medium is ready to receive user data. The initialization step comprises defining a general purpose area on the recording medium which is not intended for recording user data but for defect management and special application programs.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising recording user data on a logical area of the disc and, prior to removal of the disc out of a recording/reproducing apparatus, finalizing the disc with a lead-in and lead-out area comprising predefined medium format data. A general purpose area within the logical area for other use than recording of user data, is being reserved. Such as use may be for example defect management. Further the method involves interrupting recording a lead-in area or a lead-out area at predefined splice points whenever a request for user data is made.

Abstract: A method of recording digital information signals on a removable rewritable disc like recording medium, the method comprising recording user data on a logical area of the disc and, prior to removal of the disc out of a recording/reproducing apparatus, finalizing the disc with a lead-in and lead-out area comprising predefined medium format data. A general purpose area within the logical area for other use than recording of user data, is being reserved. Such as use may be for example defect management. Further the method involves interrupting recording a lead-in area or a lead-out area at predefined splice points whenever a request for user data is made.