Typo or Freudian Slip
And here I thought I knew what CD-R stood for.
What’s more is that this is a repost from another site (references www.noritsu.com but I could not find the original article), and neither site caught it. People, you’ve got to proofread better.
If you read the rest of the article you’ll find many other typos and grammar mistakes like “humidly leaks in”.
Hilarious.