Optical disc recording apparatus

Abstract

The present invention relates to an optical disc recording apparatus, which includes a buffer controller managing a buffer memory, a disc state manager managing and searching for recordable / unrecordable states on a disc, a defect detector detecting defective sectors on the disc, and an optical disc drive device that can record even on the defective sectors. When a defective sector region i.e. a set of defective sectors exists in a wide range, file management information is recorded. If the range is narrow, recording is continued by recording dummy data on the defective sector region and resuming to record regular data upon arrival of normal sectors. The range of the defective sector region is defined as wide when the buffer memory would be exhausted on the way if the dummy data recording was continued, whereas it is defined as narrow when the buffer memory would not be exhausted.

Description

technical field [0001] The present invention relates to an optical disc recording device for recording data on a write-once optical disc medium, and particularly relates to a technique for coping with recording errors. Background technique [0002] In an optical disc recording device, when recording data on a write-once optical disc medium in accordance with the VR (Video Recording: Video Recording) standard, writing is performed in accordance with the UDF (Universal Disk Format: Universal Disk Format) file system. When a writing error occurs during this recording, since the recording is stopped at the time when the error occurs, the file management information (VAT ICB) and management information (VAT) desired to be recorded cannot be recorded at the end of the recording, and the data is not completely recorded. Since the file system is recorded accurately, sometimes all the recorded data cannot be read out, and even the data may be lost. [0003] In view of such a situati...

AI Technical Summary

Problems solved by technology

Therefore, in the case of real-time recording of broadcast waves or mobile recording of copyright-protected programs, etc., a huge buffer for storing all the recording source data is necessary, and there is a problem that cannot be applied to an optical disc device with a limited buffer capacity. such a problem

[0007] In addition, in prior art such as Japanese Patent Laid-Open No. 9-270175, buffer management in false data recording is not considered

Therefore, in real-time recording, when the range of bad sectors expands and it is necessary to record false data for a long time, there is a possibility that the data volume of the recording source data stored in the buffer exceeds the capacity of the buffer and overflows, causing the recording source data to overflow. A class of problems where noise occurs due to disappearance

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