Yet so many of them are available on compact disk.

Compact disks aren't trouble free, but more about that later.

And now, there are plans to make the rare works available on compact disk by next year.

And a compact disk is no substitute for a book.

But these songs are not provided to you on a compact disk.

These are some of her recordings, all on compact disk.

For starters, this one would come on a compact disk.

Compact disks, however, do not seem to suffer in the heat.

He said the department still had the original compact disk containing the video.

The result: five compact disks, each containing one or more major works.