Method and apparatus for recording data on write-once recording medium

An apparatus for managing a defect area detected while recording data on a write-once recording medium, the recording medium having a data zone and a non-data zone, the data zone having inner and outer spare areas and a user data area, the apparatus comprising:

• a pick-up configured to directly record data on the recording medium;
• a servo configured to control operation of the pick-up so as to record a signal on the recording medium;
• a data processor configured to modulate a signal to be recorded to the recording medium;
• and
• a microcomputer configured to control the pick-up, the servo and the data processor such that when data is recorded in non real-time, one of a first skip replacement and a linear replacement is performed so that the first skip replacement skips the defect area and continuously records data starting from a cluster subsequent to the defect area and the linear replacement replaces the defect area with a replacement area of the spare area, and records defect management information having position information of the defect area and position information of the replacement area recorded onto temporary management areas allocated to the non-data zone and the inner and outer spare areas, two of the temporary management areas being located on an inner side of the inner spare area and an outer side of the outer spare area, respectively, wherein the defect management information of the linear replacement is recorded as a re-allocatable defect (RAD) type if the defect area is a single cluster, and recorded as a consecutive re-allocatable defect (CRD) type if the defect area is a plurality of consecutive clusters, and the defect management information of the first skip replacement is recorded as a non-reallocatable defect (NRD) type if the defect area is a single cluster, and recorded as a consecutive non-reallocatable defect (CND) type if the defect area is a plurality of consecutive clusters;
• and
• when data is recorded in real-time, one of a second skip replacement and a stream recording is performed, the second skip replacement skips multiple consecutive clusters and records data starting from a cluster subsequent to the multiple consecutive clusters, and the stream recording ignores the defect area and records data continuously on the defect area without an allocation of a replacement area, wherein the second skip replacement further includes recording defect management information having position information of the defect area onto the temporary management area, wherein the defect management information of the second skip replacement is recorded as a consecutive non-reallocatable defect (CND) type.

A method for managing a defective area in a recording medium, the recording medium having a data zone and a non-data zone, the data zone having inner and outer spare areas and a user data area, the method comprising:

• writing data according to whether the data is real-time data or non real-time data, wherein the data is written in a replacement area of the spare area in place of the defective area if the data is the non real-time data, and wherein the defective area is skipped and the data is written starting from a next available area of the user data area if the data is the real-time data;
• and
• recording defect management information in one of defect management areas within the inner and outer spare areas in response to the writing, the defect management areas being located on an inner side of the inner spare area and an outer side of the outer spare area, respectively, wherein the defect management information includes first position information for specifying a position of the defective area, second position information for specifying a position of the replacement area and status information for indicating whether the defective area is a single cluster or multiple consecutive clusters and whether the defective area is replaced with the replacement area or not,
• wherein the defect management areas are used one by one in a designated order to record the defect management information, and
• wherein other defect management area is not used until one of the defect management areas is full.

An apparatus for managing a defective area in a recording medium, the recording medium having a data zone and a non-data zone, the data zone having inner and outer spare areas and a user data area, the apparatus comprising:

• a pickup configured to read/write data from/on the recording medium;
• and
• a controller operably connected to the pickup and configured to control the pickup to write data according to whether the data is real-time data or non real-time data, wherein the controller is configured to control the pickup to write the data in a replacement area of the spare area in place of the defective area if the data is the non real-time data, and wherein the controller is configured to control the pickup to skip the defective area and to write the data starting from a next available area of the user data area if the data is the real-time data, and the controller configured to control the pickup to record defect management information in one of defect management areas within the inner and outer spare areas in response to the writing of the data, the defect management areas being located on an inner side of the inner spare area and an outer side of the outer spare area, respectively, wherein the defect management information includes first position information for specifying a position of the defective area, second position information for specifying a position of the replacement area and status information for indicating whether the defective area is a single cluster or multiple consecutive clusters and whether the defective area is replaced with the replacement area or not,
• wherein the defect management areas are used one by one in a designated order to record the defect management information, and
• wherein other defect management area is not used until one of the defect management areas is full.