会有更快的DVD和CD驱动器吗？
Throughout the 1990s and early 2000s we all enjoyed increasingly faster CD and DVD drives, but then the growth curve leveled off. Will we ever see faster optical disc drives?
在整个1990年代和2000年代初，我们都享受着越来越快的CD和DVD驱动器，但是随后增长曲线趋于平稳。 我们会看到更快的光盘驱动器吗？
Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.
今天的“问答”环节由SuperUser提供，它是Stack Exchange的一个分支，该社区是由社区驱动的Q＆A网站分组。
问题 (The Question)
Curious SuperUser reader User1301428 wanted to know why disc drives haven’t been getting any faster. He writes:
好奇的SuperUser阅读器User1301428想知道为什么光盘驱动器的速度没有这么快。 他写：
I was thinking about the fact that in the last years I have never seen CDs and DVDs supporting writing/reading speeds higher than 52X and 16X, respectively.
我在考虑一个事实，在过去的几年中，我从未见过CD和DVD分别支持高于52X和16X的写入/读取速度。
Is this a commercial choice (i.e. manufacturers don’t care about optical discs anymore and focus more on flash memories and SSD drives) or a technical limitation (i.e. optical drives cannot support higher writing and reading speeds)?
这是商业选择 (即制造商不再关心光盘，而是将更多的精力放在闪存和SSD驱动器上)还是技术上的限制 (例如，光驱不能支持更高的写入和读取速度)？
Well, which is it? Are such drives impractical to market or impractical to build?
好吧，这是什么？ 这样的驱动器在市场上不切实际还是在建造上不切实际？
答案 (The Answers)
SuperUser contributor PhonicUK offers up the following explanation:
超级用户贡献者PhonicUK提供以下解释：
It’s mostly a technical limitation. Put simply, if you spin the disk too fast it starts to become unstable and wobble around or even start to come apart under the sheer stress. At best this means read/write errors – and at worse means the possibility of it coming loose and causing damage.
这主要是技术限制。 简而言之，如果您将磁盘旋转得太快，它就会变得不稳定，摇摆不定，甚至在巨大的压力下开始分裂。 充其量，这意味着读/写错误，而更糟糕的是，它可能会松动并造成损坏。
At 52x speed, the disk is spinning at around 24000 RPM – at around 27000 RPM the disk would start to *****.
以52倍速运行时，磁盘以24000 RPM左右的速度旋转-在27000 RPM左右，磁盘将开始破裂 。
Dan Neely reminds us there were attempts to break through the speed barrier:
丹·尼利(Dan Neely)提醒我们，有人试图突破速度障碍：
About a decade ago there were CD drives that used multiple laser beams to read 7 tracks at once for higher performance without having to spin the disk extremely fast. However they were expensive and apparently had reliability problems as well.
大约十年前，有一些CD驱动器使用多个激光束一次读取7条磁道，从而获得更高的性能，而不必极快地旋转磁盘。 但是它们很昂贵，而且显然也存在可靠性问题。
It’s also worth noting that it isn’t just a question of structural integrity of the disk at high RPMs, but also of noise.
还值得注意的是，这不仅是高RPM时磁盘结构完整性的问题，而且还是噪声的问题。
Finally, Ramhound points out that it’s of course possible, but that it will never happen thanks to the advent of Blu-ray:
最后，Ramhound指出这是可能的，但是由于Blu-ray的出现，它永远不会发生：
They could modify the disk in theory to suppor higher RPMs the problem of course is that they would create a new standard for a media that is slowly being discontinued. The simple fact is Blu-ray is the future, and most of the manufactures know that, so why waste money making a CD or DVD support faster burn times. You can already burn a double layer DVD in a few minutes.
他们可以在理论上修改磁盘以支持更高的RPM，当然，问题在于他们将为逐渐停止使用的媒体创建新的标准。 一个简单的事实是，蓝光就是未来，大多数制造商都知道这一点，因此，为什么要浪费金钱来制作CD或DVD却可以缩短刻录时间。 您已经可以在几分钟内刻录双层DVD。
Looks like we’ll all just have to be happy burning our DL-DVDs in only a few minutes.
看起来我们都只需要在短短几分钟内快乐地刻录DL-DVD就可以了。
Have something to add to the explanation? Sound off in the the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.
有什么补充说明吗？ 在评论中听起来不对。 是否想从其他精通Stack Exchange的用户那里获得更多答案？ 在此处查看完整的讨论线程 。
翻译自: https://www.howtogeek.com/139050/will-there-ever-be-faster-dvd-and-cd-drives/