Test disc and drive verification method

Abstract

In a test disc, data (test data) is recorded in such a manner as to fill an entirety of a data region and, next to this test data, border-out data is recorded which contains information indicating that recording is prohibited. By determining whether the data can be played back appropriately from a position in the vicinity of an outer periphery of the disc where playback characteristics are apt to be unstable, whether the data can be played back appropriately from all of the regions is verified. Also, by determining whether it is possible to recognize that test disc is capable of recording, it is verified whether the border-out data can be smoothly acquired from the position in the vicinity of the outer periphery of the disc where playback characteristics are apt to be unstable.

Description

technical field [0001] The present invention relates to a test disk (test disk) and a drive inspection method, which is particularly suitable for the operation inspection of a write once read many optical disk (write once read many optical disk) drive. Background technique [0002] Currently, standardization of HDDVD (High Definition Digital Versatile Disc) using laser light with a blue wavelength (wavelength of about 405 nm) as a write-once optical disk is progressing. [0003] HDDVD standards include a ROM (Read Only Memory) standard for reproduction, a rewritable RW (ReWritable) standard, and a recordable R (Recordable) standard, and the disk area format and the type of management information are different. In addition, in the HDDVD standard, in order to facilitate the reading of disc information during reproduction, information such as disc type and reference book information is stored in multiple places. In addition, although the disc format is specified in this standa...

AI Technical Summary

Problems solved by technology

However, if test disks are prepared one by one for each item in these inspections, the number of test disks will increase, and there will also be a problem that the inspection work will become complicated.

In addition, in the case of producing test discs, it is necessary to provide ideal test discs with no errors in recorded marks or recorded information, and if a variety of test discs are produced, there is also a problem of cost and time spent accordingly.

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