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 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 recording medium (D) comprises a file system area (FSA), a data area (DAA) and an initial defect management area (DMA). A system comprises a drive (DR) for writing data (DA) to or reading data (DR) from the data area (DAA) or the defect management area (DMA), and a host (H) for sending data (DA) to or for receiving data (DA) from the drive (DR) when the drive (DR) is in a mounted state wherein a file system (FS) in the file system area (FSA) is available to the host (H). The method of accessing such a recording medium (D) detects (S1) whether a shortage of free space in the defect management area (DMA) is to be expected, and if yes, allocates (S2) supplemental defect management area (SDMA) at the cost of the data area (DAA). The file system (FS) is adapted to reflect the latest state of available data area (DAA) and the allocated supplemental defect management area (SDMA).

Abstract: A device for recording information records blocks, having continuous logical addresses on a record carrier at corresponding physical addresses, translates logical addresses into physical addresses in dependence of defect management information. The, defect management information 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, such as the type being streaming for real-time data like digitally encoded video, or non-streaming for random data like computer data files. The device reassigns defect management area for changing the assignment information in dependence of the data type. For example, a contiguous defect management layout is converted into a distributed layout.

Abstract: A device for recording information on a record carrier (11) is arranged for formatting a multilayer record carrier. The device has formatting means (16) for formatting the record carrier according which formatting includes de-icing by, in the event that locations in the user data area have not yet been recorded, writing dummy data (60) on the locations. The formatting means (16) determine a first radial position (50) and a first layer (40), which first radial position is indicative of a location on the first layer on which user data will be recorded first according to a predefined recording format. Subsequently said de-icing is started by writing of dummy data on a second layer (41) of the record carrier at the first radial position, opposite the location of the first user data (55). Hence a de-iced area (58) is created opposite the user data (55).

Abstract: A recording device for recording information at addressable locations on a removable record carrier for storing data. The device comprises monitoring means (31) for monitoring recording of the data by storing recorded data addresses in a memory. Further, the device comprises examining means (32) for retrieving the recorded data based on addresses read from the memory, and for checking the recorded data addresses for presence of special data. This allows for tracking of changes of the special data stored on the record carrier. The device is capable of generating additional data depending on the special data and of recording the additional data on the record carrier without reading all the special data.

Abstract: A device for recording blocks of information on logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence of remapping information (57, 63) indicative for translating a logical address initially mapped to a physical address to an alternate physical address in a remapping area (55), for example for defect management. The device can operate at two addressing modes corresponding to recording user data and additional data in separate areas. The device has storage means for storing additional data (54, 62) while maintaining addressing mode for storing data in the user area (53), the storage means being arranged for assigning an additional data physical address to the additional data, adapting the remapping information (57, 63) to indicate that the additional physical address is not available for storing user data, and directly recording the additional data at the additional data physical address.

Abstract: The invention relates to a method and a recording device for easy and quick access to record carrier management information stored on the record carrier itself. The invention further relates to a record carrier for use in such a method and recording device.

Abstract: Multi layer record carrier comprising compatibility information, and method for recording such compatibility information on a record carrier.

Abstract: 1. A data storage system (1) comprises: —an optical disc (2) having a storage space (3) comprising blocks (4) of storage locations; —a disc drive (10), suitable for reading information from the disc, the drive being designed to automatically start reading a next block after having read a previous block; —a host (20), capable of cooperating with the drive; —the host being designed to send (5) commands to said drive, commanding said drive to read one or more sectors of data from said disc (2); —the host being designed to send a jump command JUMPm(X,Y;SAP) to said drive, for instructing said drive to jump to block Y after having read block X, the jump command JUMPm(X,Y;SAP) including a sequential access parameter SAP; —the drive being designed, in response to receiving a jump command JUMPm(X,Y<X;SAP˜0), to jump back to block Y after having read block X.

Abstract: The present invention relates to a method of ensuring seamless playback of video files stored as a BDFS (Blu-ray Disc File System) file in a UDF (Universal Disk Format) file system using a UDF and BDFS combination format, said method of seamlessly playing back the video files comprising the step of creating a BDFS extent by mapping it to at least one UDF extent, wherein said mapping is based on rules defined by BDFS.

Abstract: A recording system records blocks of information on a record carrier according to a file management system. Data space on a partly and fragmented recorded record carrier (60-68) is managed as follows. The information includes a first type of information, such as video, and a second type, such a general purpose data. The first type has extent allocation requirements that include requiring an extent to accommodate a multitude of information blocks in a consecutive range of addresses and the extent to have at least a predetermined extent size. Data space is managed by selecting at least one partly recorded data area (67,63,68) of at least the extent size which data area contains information blocks (63) at recorded addresses, and subsequently creating a free data area (74) on the record carrier by moving the information blocks from the recorded addresses in the partly recorded data area to different addresses (73) outside the free data area (74) and correspondingly adapting the file management data.

Abstract: A method and device for recording information signals on a partly recorded writable record carrier (11), e.g., an optical disc. An information signal represents at least one information unit. The record carrier has a recording track which includes preformed track position information indicative of locations for recording the information units. From the information signal, a modulated signal is generated having successive frames, each frame including a synchronizing signal. The modulated signal is recorded at a one of the locations, while maintaining a fixed relationship between the track position information and the synchronizing signals. In the event that the location is after and adjacent to an already recorded location, the recording is started at a link position (31) before the end of a last frame of the earlier recorded information signal, at a predefined distance before a first synchronizing signal (30) of the modulated signal.

Abstract: A device for recording blocks of information on logical addresses on a writeonce record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses by addressing means (31). Allocation means (32) define a continuous addressing space for a user area and divide it into a front area, a middle area and a rear area for sequentially recording information by allocating to them parts of the user area address range. The device has re-allocation means (33) for splitting the middle area into new areas, specifically when no more data can be stored in the rear area or the front area.

Abstract: The invention concerns a method, device and computer program product for recording a set of data (52) having certain storage requirements on a storage medium. An application obtains information about the free available storage area of the storage medium from an operating system, identifies at least one available space of the storage medium that corresponds to requirements for the set of data, orders the operating system to reserve an area, if the operating system writes data in at least one other space before the identified available space, which area corresponds to said other space for dummy storage data (50), and thereafter, orders the operating system to store the set of data (52), such that the operating system places the set of data in the identified available space.

Abstract: A device for recording records a series of blocks (42) having continuous logical addresses, e.g. digitally encoded video, on a record carrier at a corresponding physical address range. Some physical addresses are assigned to defect management areas (43). The logical addresses are translated into the physical addresses in dependence of the defect management information. The device has contiguous recording means for detecting if the allocated physical address range is interrupted by a subset of physical addresses assigned to a defect management area. If so, the subset of physical addresses is reallocated to the user data area. The series of blocks (42) is contiguously recorded extending over the subset of physical addresses. The defect management area may be eliminated, shifted to a new location (51) after the end of the recorded file or shifted to the end of the medium.

Abstract: A device for recording records blocks of information on logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence of remapping information (57) indicative for translating a logical address initially mapped to a physical address to an alternate physical address in a remapping area (55), for example for defect management or logical overwrite. The device has storage means for covertly storing control data (54) while maintaining a size of the user area (53), the storage means being arranged for assigning a covert physical address to the control data and adapting the remapping information (57) to indicate that the covert physical address is not available for storing user data.

Abstract: A device for recording records blocks of information on logical addresses on a record carrier at corresponding physical addresses. The logical addresses are translated into the physical addresses in dependence on defect management information that includes defect information on a defective status of physical addresses and remapping information on translating a logical address initially mapped to an initial physical address to an alternate physical address. The device has a real-time storage unit for writing real-time information blocks (77) to respective initial physical addresses irrespective of the defective status. When recording at a defective status location (76), the real-time information block is temporarily stored in a memory (80). In a separate period, when the writing of real-time information blocks is suspended, said temporarily stored real-time information blocks are additionally written to alternate physical addresses (81).

Abstract: The present invention relates to reproducing a unique identifier (ID) from a record carrier (5), a data which has area for storing data and a defect management area for storing data reallocated from defective sectors and for storing reallocation information. To prevent users from copying the unique identifier a reproduction apparatus is proposed comprising:—a reallocation information reading means (7) for reading reallocation information from said defect management area marking a first predetermined non-defective sector in said data area as defective and as reallocated to a second sector in said defect management area,—a data reading means (6, 8) for reading a first data unit from said first sector and for reading a second data unit from said second sector, and —an evaluation means 10) for evaluating said first data unit and said second data unit by comparison and/or combination to derive said unique identifier(ID).

Abstract: A device for recording records information in blocks having logical addresses at a physical address (52) in a track on a record carrier. The logical addresses are translated into the physical addresses in dependence of defect management information, such as remapping tables, maintained in defect management areas. For avoiding remapping of real time information, such as video, a series of blocks (42) having a continuous logical address range is recorded in a corresponding allocated physical address range. In the event of a defect interrupting the allocated physical address range local offset information is generated for adding an offset to a local range of physical addresses in said address translation for skipping (61) the defect. The blocks logically following the last block before the defect are written at physical addresses following the defect, and an end portion (62) that extends beyond the allocated physical address range due to the defect, is accommodated elsewhere.