Use Exact Audio Copy.
It will read the CD 3 times before it finishes, and you can read the CD at any speed (I suggest 1x) to make sure it gets it right.
If that doesn't work, and it's the "ring-type" of copy-protection, wherein you can see a physical ring around the edge of the under-side of the CD, put a piece of clear plastic tape on the underside CD itself on a tangent to the ring. That way the drive will not be able to read that section properly, defeating the copy-protection altogether.
I successfully ripped a purchased copy of Massive Attack's "Future Proof" CD when it was released some time ago last year.
I promptly e-mailed EMIs quality control (I believe the address is
qc@emi.ca or something to that effect) and bitched to them mentioning the fact I couldn't play it in 5 separate <em>audio only</em> CD players. After about 2 weeks, I received an unemcumbered copy of the album.. so now I have two. :-)