But so far, sales of such discs have been minuscule-largely because of a war between two formats, HD DVD and Blu-ray.

但是，到目前为止，这类影碟的销售量是很微小的，主要是因为HD DVD和蓝光两种格式之间的竞争。

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Anyone with a few dollars to spare can get themselves a laser pointer, and every CD, DVD or Blu-ray player USES a laser to read the bits encoded on discs.

任何一个有几美元零花钱的人都买得起激光笔，每台CD、DVD或蓝光播放器都是用激光读取光盘上的数位编码(不言而喻，老式光盘播放器也是如此)。

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On a recent visit “Red” could be had for $15 plus sales tax and “Toy Story 3” for $19.96. A triple pack containing a DVD, a Blu-ray disc and a digital copy of “Despicable Me” was going for $24.96.

笔者最近去时，《红》售价税前15美元，《玩具总动员3》19.96美元，而三盘合订（包括DVD,蓝光盘和数字格式盘）的《卑鄙的我》需24.96美元。

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Blu-ray purchases snapped up 7 percent, rentals of DVD and Blu-ray discs together were rolled up to take 18 percent of the pie, VOD accounted for 9 percent with 3 percent of the cash left for digital downloads and online streaming.

ENGADGET: Surprise surprise, most home video spending still on discs

The cost drivers between HD-DVD and Blu-Ray manufacturing.

ENGADGET: Interview with HD-DVD Promotions Group - HD Issues HD

HD-DVD and Blu-Ray will both, at some level, take advantage of "Mandatory Managed Copy" technologies, which require that the new discs be capable of letting movie publishers decide whether consumers can share disc content in some way.

FORBES: Magazine Article