Q: What is a riplock? 不知道riplock（简称video riplock）翻译成中文叫什么好。它是指一种减慢DVD影碟读取的速度的技术手段，采用该技术的驱动器，通常在读取影碟时，驱动器的读取速度会自动降到2x左右。（#关于驱动器的读取速度，请参考此文：DVD-ROM驱动器的速度、性能如何?） 不过riplock并不会影响DVD数据碟片的读取速度。 riplock的应用主要有以下2个目的：第一，当读取DVD影碟时，减少驱动器产生的噪声。 第二，迎合电影产业的需要。复制DVD影碟需要一个较长的过程。 说明：并不是所有的驱动器都会做riplock（或称作videolock）限制。会因各种驱动器对不同碟片的类型而已。 A: Although a drive may be advertised as being able to read at some speed sUCh as 16x, it may not actually do so. This is because of two different things that can slow down a drive’s reading performance. The first is the riplock, which is really just a short name for video riplock. Riplocks will slow down the reading speed of video DVDs, oftentimes to somewhere in the ballpark of 2x. As such, riplocks should not affect the reading of DVD data discs. Riplocks serve two purposes: first, it makes the drive quiet when watching DVD movies, and second, it makes the movie industry happy because it makes ripping videos a very slow process. In addition to the video riplock, drives also have speed limits based on media type: slower speeds for recordable, rewritable, and dual-layer (pressed or otherwise) media. These media-specific limits affect data DVDs as well as video DVDs. Ultimately, how fast your drive will read a disc will depend on what the maximum advertised read speed is and the two factors just described here. Not all drives will have video riplocks, and the amount a drive slows down for different media types vary from drive to drive.
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