Disc damage managing method

Abstract

The present invention is a method for accessing a C.D. data using a C.D. player. There are a plurality of spare packets and a plurality of data blocks on a C.D.. The data blocks are used to record the data to be written in the C.D., and the spare packets are provided with a plurality of spare blocks in place of a damaged data block to record data. A memory is provided in the C.D. player, which has a plurality of buffering regions to record the data read out from a spare packet. The method comprises the following steps: when writing the data in the first buffering region to a corresponding spare packet of the C.D., seeking a second spare packet having the spare blocks in place of the damaged blocks if a plurality of damaged first spare blocks are found in the spare packet; storing the data in the second spare packet in a releaseable second buffering region if these data are not written in any buffering region; making the first buffering region become a releaseable buffering region after the data in the first buffering region which are to be written in the first spare block are stored in the second buffering region, and the data read out from the spare packet can be rewritten in the first buffering region in place of the original data recorded therein.

Description

technical field [0001] The present invention relates to a method for disc damage management, in particular to a method for configuring a plurality of buffers in the memory of a disc drive for alternate use during the disc damage management process and increasing storage space utilization efficiency and damage management performance. Background technique [0002] Optical discs with compact size and large storage capacity are already one of the most common non-volatile storage media used in the information society. In particular, rewritable optical discs can repeatedly rewrite different data according to the user's needs, greatly increasing the flexibility of the optical disc storage medium, and can better meet the user's needs. However, during the data access process of repeated burning of the disc, the disc may be damaged due to careless use and storage of the disc; how to manage these damages during the data access process to maintain the function of the disc to record data...

AI Technical Summary

Problems solved by technology

Depend on Figures 5A to 5E It can be found that because the known flow 100 only processes one damaged block at a time during the ongoing process, the spare package temporarily stored in the memory 20 cannot be released; If multiple damaged spare blocks are used, new storage space must be continuously configured to temporarily store the spare package, consuming the storage resources of the memory 20

For example, in Figures 5A to 5E In, because the known process 100 only processes one damaged block at a time, the data of the unprocessed damaged spare blocks Bs3 and Bs6 in the memory 20 cannot be released and continue to occupy the memory resources of the memory 20

[0019] It can be seen that, in a more practical situation, the known process 100 cannot effectively utilize the storage space of the memory 20, and will continue to consume the memory resources of the memory 20 during the process, which will cause damage management to be ineffective. , and the operating efficiency of the optical disc drive 10 will also decrease

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