The best way we have thought of to make the certification-level release control happen is by releasing the software on LiveCDs (CD-Rs only, no CD-RWs).

要完成可信任级别的发布控制，我们想到的最好办法恰好是将软件发布于LiveCD之上(只能是CD - R，不能是CD - RW)。

youdao

During the boot and installation process, there is no need to access the CD-ROM devices.

在引导和安装期间，不需要访问CD - ROM设备。

youdao

The fedora-livecd package is a minimal Live CD with no user interface.

fedora-livecd 包 是一个不带用户界面的最小的 Live CD 包。

youdao

But those hardware bases are on the decline: Witness the MacBook Air, which contains no CD drive, and the increasing availability of Bluetooth MP3 players and satellite radio in cars.

FORBES: Magazine Article

As I said, dead performers receive no royalties, and the CD itself costs a few cents (if that) to make.

FORBES: How To Build A Top Quality Classical Music Library For $100

In other words, selling a CD once you no longer want it.

BBC: Redigi screengrab