非线性编辑中,要对素材节目的数字化信号作出随机存取、修改和处理,首要条件是必须有存储容量大、存取速度快的存储媒体。大家知道,目前普遍应用的存储媒体有磁盘、光盘和半导体存储器三大类,它们各有特点,适应于不同的需求场合。下面,分别考察一下它们诸方面的特性。 In non-linear editing, the random access, modification and processing of the digitized signal of the material program must first have a storage medium with large storage capacity and fast access speed. We all know that the currently widely used storage media are three major types of disks, optical disks and semiconductor memories, each of which has its own characteristics and can be adapted to different needs. Next, examine each of their characteristics.