Optical disc data restoration method, optical disc data inspection method and computing equipment

Abstract

The invention discloses an optical disc data restoration method, an optical disc data inspection method and computing equipment. The optical disk data restoration method comprises the following steps: acquiring first data written in the last session of an optical disk; obtaining a complete data packet recorded last time as second data; starting from the initial position of the second data, reading data with the length being the first data length as third data; comparing the first data with the third data; if the comparison result is consistent, taking the end position of the first data as a repair initial position; and writing the data starting from the restoration starting position in the second data into the optical disk. According to the technical scheme, the integrity of optical disk data is guaranteed.

Description

technical field [0001] The invention relates to the technical field of optical disc recording, in particular to an optical disc data restoration method, an optical disc data inspection method, a computing device and a readable storage medium. Background technique [0002] At present, many companies with confidentiality requirements are still using optical discs as data storage media. ISO9660 and UDF file systems are common optical disc formats, which are well supported in today's operating systems. Therefore, with excellent compatibility, ISO9660 Or a CD with the UDF file system, which can be read and loaded by almost all computer operating systems. Moreover, DVD+R / DVD-R / CD-R discs, due to their non-erasable characteristics, remain constant after data is written, and have good use scenarios in the field of data backup. [0003] When burning a disc, when an unexpected situation occurs (such as a power failure of the recording host, a power failure of an external optical driv...

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Problems solved by technology

[0003] When burning a disc, when an unexpected situation occurs (such as a power failure of the recording host, a power failure of an external optical drive, etc.) and the disc burning fails, only a part of the data is burned without a complete file system, which will cause the disc to be unavailable in the system. recognition, so that the CD cannot be mounted normally in the system, resulting in unreadable data on the CD and loss of data, which in turn leads to the failure of the user's purpose of backing up data

To extract the data from the disc, complex technical means are required. If the data on the disc is sensitive, handing it over to a third party to repair the disc will undoubtedly cause a security risk of data leakage, which is a major risk for enterprises and individuals; For ordinary users who get the disc, because the disc cannot be mounted normally, the file list is displayed as blank, which is easy to be mistaken for an empty disc, and then additional burning is added to it, and the disc is still completely unrecognizable

[0004] At present, for non-erasable optical discs, the disc recording software used on the market is modified and released based on Brasero and K3B, and the functions are based on the basic functions of the original application. Brasero and K3B are respectively based on the xorriso / mkisofs&cdrecord open source library to realize the process of disc recording , the data can be burned to the disc, but if the burning fails, there is no subsequent data recovery process

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