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为了正确地估算CD—R光盘的使用寿命,要假定当时写盘时一切顺利,没什么问题,如果当初刻写数据时就有问题,那么即使把光盘放上一百年,其数据可读性也不会有所改善。 那么怎样检测刚刚刻录好的CD—R光盘的质量呢?你可以用一台CD质量检测仪来读你的CD—R光盘,检测数据流中的各级错误。 迄今大部分对CD—R光盘寿命的研究都是用BLER(Block Error Rate)作为衡量光盘质量的唯一最主要的指标。BLER定义在Philips红皮书和黄皮书及ISO/IEC 10149:1989(E)中。特别规定10秒以上的BLER平均数不得超过220CPS(Counts Per Second)。值得赞扬的是有的光盘制造商如Eastman Kodak采用了更严格的标准:50CPS作为衡量光盘是否合格的标准。
In order to correctly estimate the service life of a CD-R disc, it is assumed that everything was going well at the time of writing the disc, which is fine, if there was a problem when the original data was written, then even if the disc was put on for a hundred years, the data readability was not There will be some improvement. So how do you detect the quality of a newly recorded CD-R disc? You can read your CD-R disc with a CD quality monitor to detect errors at all levels in the data stream. Most studies of CD-R disc life so far have used BLER (Block Error Rate) as the single most important indicator of disc quality. BLER is defined in the Philips Red Book and the Yellow Book and ISO / IEC 10149: 1989 (E). Special provisions BLER average of more than 10 seconds shall not exceed 220CPS (Counts Per Second). It is commendable that some optical disc manufacturers such as Eastman Kodak adopt a more stringent standard: 50CPS as a measure of disc eligibility criteria.