便携式媒体编号服务 Portable Media Serial Number Service
媒体编目号码 Media Catalog Number
多媒体数字信号编解码 Multimedia Signal Codec
通常媒体故障是由于数据文件完全丢失或系统更改编号（System Change Number，SCN）时间戳与数据库的其余部分不同步造成的。
Usually media failure is caused by either the complete loss of a data file or a system change number (SCN) time stamp being out of sync with the rest of the database.
在您发送产品媒体(CD - ROM或DVD)进行测试时请将此跟踪编号写在该媒体上，并在所有信件中以此指代您的产品。
Write this tracking number on your product media (CD-ROM or DVD) when you send it in for testing and refer to it in all correspondence.
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