Magneto-optical disc system noise is analysed in the paper. Several methods for the improvement of signal-to-noise ratio are also summarized.
本文分析了磁光盘系统的噪声，综述了提高信噪比的几种方法。
November 1 — Sony announces the development of Ultra Density optical (UDO), a blue-laser optical disc format proposed to replace magneto-optical discs.
11月1日—Sony宣布开发超密度光盘(udo)，一种欲取代磁-光盘的蓝光光盘格式。
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