Optical Storage Media
It was noted in the previous Chapters that multimedia data are voluminous. A high-density floppy disk (with 1.4 Mbytes storage) can store only a few images, while a short video can easily require a storage space up to tens of Mbytes. Large capacity storage space is thus required for recording and distribution of multimedia data. There is a variety of high capacity storage media available today. They are primarily based on magnetic (e.g., hard disk, zip drive) and optical (e.g., CD, laser disc, DVD) or a combination of both of these technologies (e.g., magneto-optical disks). The optical storage has become the most popular media for multimedia applications in the last two decades. In fact, in the early 1990s, computer retailers used to flaunt a PC with a CD drive as a multimedia PC. However, as CD drives are available in almost all PCs today, the term “multimedia PC” has lost its status.
KeywordsCompact Disk Audio Data Reflective Layer Track Pitch Digital Versatile Disc
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