Method and device for optical disc writing

Abstract

The invention provides a method and device for recording an optical disc. The method provided by the present invention includes the steps of: acquiring the write record information of the optical disc, where the start address and end address of previous writes in the record information divide the data storage area on the optical disc into multiple write areas; Selecting a writing area from the plurality of writing areas to be used for writing the optical disc this time; determining the writing strategy for the optical disc used in this writing to write the optical disc; and updating the recording information of the optical disc. According to the method provided by the invention, a suitable area can be selected for writing on the optical disc, which avoids shortening the life of the optical disc caused by over-writing in some areas, and can also determine a suitable writing strategy to improve the writing effect of the optical disc.

Description

technical field [0001] The invention relates to the field of optical storage, in particular to a method and device for writing an optical disc. Background technique [0002] Phase-change discs, such as CD-RW discs, DVD-RW discs, and BD-RE discs, are favored by users because they can be rewritten thousands of times. The writing quality of a phase-change optical disc is affected by many factors, such as the quality of the optical disc, the quality of the writing device, and the writing times of the optical disc. The parameter usually used to characterize the writing quality of an optical disc is a jitter value, and the smaller the jitter value, the better the writing quality of the optical disc. In the DVD+R / RW standard, Jitter represents the error of the data signal relative to the system clock, which is required to be controlled within 9%. [0003] In general, writing the same phase-change optical disc multiple times using the same optical disc writing strategy (write stra...

AI Technical Summary

Problems solved by technology

However, the assumed conditions in the OPC process cannot reflect the writing times on the area to be written on the optical disc. Therefore, the optical disc writing strategy determined by the OPC process cannot fully meet the specific conditions of the area to be written.

[0006] Each writing of an optical disc is usually carried out from the inner area to the outer area of ​​the optical disc, so the number of times the innermost area is written is often much greater than that of the outermost area, so that in some cases, the inner area has reached its service life, and this The outermost area may not have been written yet, so resources are wasted due to unreasonable use

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