Method for burning CD ROM

Abstract

The invention relates to a CD-ROM burning method which comprises the following steps: firstly, a burn-in test is conducted and the burning power of the burning speed is estimated; a blank part is searched in the lead-out area of a disk so as to validate the results of the burn-in and the estimation; a burning signal is read and validated so as to eliminate the burning speed with bad burning quality and reserve the burning speed with good burning quality to serve as the recordable speed; the burning speed required by the burning data address is confirmed; the required burning speed seriatim searches a recordable speed from top to bottom in sequence so as to find out a recordable speed to replace the required burning speed; after the CD-ROM is adjusted to the recordable speed and the power estimated by the recordable speed, the burning data is conducted so as to ensure the burning quality.

Description

technical field [0001] The invention relates to an optical drive, in particular to a method for verifying the test result of burning power and screening and burning double-speed optical discs when the optical drive burns optical discs. Background technique [0002] The optical drive projects the laser beam emitted by the reading head on the recordable optical disc to form marks such as pits or phase changes, resulting in the difference in the amount of reflected light between marked and unmarked, forming digital signals of 0 and 1 to achieve recording Purpose of Data. Therefore, the clarity of marks on the optical disc depends on the power intensity of the laser beam and the irradiation time, and the irradiation time decreases with the increase of the rotational speed of the optical disc. [0003] Although the slower the rotation speed of the optical disc, the longer the irradiation time of the laser beam, and the better the clarity of the formed marks, but the slow rotatio...

AI Technical Summary

Problems solved by technology

[0005] However, it is known that the burning power of high burning speed is directly estimated from the test results of low burning speed, and it is not obtained through actual testing. Poor readability, unreadable and wasting discs

To perform a burn-in test with optimal power control for each high programming speed, not only more test areas are required, but the effective storage capacity of the disc is reduced, and it is necessary to prepare, transmit and burn each high programming speed. Test the data mode, increase the burn-in test time, and affect the overall burning efficiency

In addition, the optical drive cannot support all brands of optical discs. For unsupported optical discs, the limited test data mode and the best burning power at the lowest burning speed may not be able to burn readable quality , not to mention the estimated high programming double speed programming power

Therefore, there are still problems to be solved urgently in the inspection of burn-in test results in the known method of burn-in test for optical discs

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