However, there are many different aspencts between CD-R and DVD-R, They both need perfect quality control.

尽管CD-R和DVD-R之间存在着很多的不同，它们都需要完善的品质控制。

youdao

The article took the DVD, CD-R and CD-W for examples, and then illustrated the testing methods and functions of the test media in the mechanical, optical and electronic performance tests.

本文以DVD、 CD-R、和CD-W媒体设备为例，论述了测试媒体在测试机械性能、光学性能、 电子性能方面的测试方法和功能。

youdao

I went to a computer shop and bought two DVD-R DL disc in case one if it fails to burn, at least I still have another one to try before going to shop and buy more DVD-R DL discs.

我去了一个电脑商店买了两个DVD - R DL的光盘案件之一，如果它未能烧伤，至少，我还有另外一个来尝试才去商店，并购买更多的DVD - R DL光盘。

youdao

DVD-R: This is a one time only recordable format, similar to burning CDs with a CD-R.

FORBES: Standards tangle

But while CDs can only hold a maximum of 650 megabytes, Pioneer's DVD-R disc, already available, holds nearly 4 gigabytes of information.

FORBES: Standards tangle

The player supports several types of discs including DVD-Audio, DVD-RAM, DVD-R, CD-R and CD-RW. There's also an SD Memory card slot, so you can look at photos you may have saved from a digital camera.

FORBES: Magazine Article