iTunes is unable to import ("rip") tracks from certain audio discs that have a copy protection system.
There's not always an easy way to identify which discs have copy protection. So, verify that you can import tracks from other audio CDs with your CD/DVD drive. If you can import tracks from other CDs, make sure the disc is clean and free from debris and scratches. To clean, wipe the shiny surface with a soft, damp cloth, working from center to edge. If the disc is scratched, it may be unreadable.
Discs that adhere to the CD Digital Audio (CDDA) specification will usually display this logo on the disc or disc case:
If the disc does not have this logo, it may not conform to the CDDA standard. Reasons for this can include:
You should contact the manufacturer of the disc for additional assistance with these types of discs and for possible ways to import the audio files onto a computer or iPod.
Important: iTunes software may be used to reproduce materials. It is licensed to you only for reproduction of non-copyrighted materials, materials in which you own the copyright, or materials you are authorized or legally permitted to reproduce. If you are uncertain about your right to copy any material you should contact your legal advisor.