CD wave is a digital approximation of an analog signal. It's not "technically" compressed. It's a digital representation of an analog signal. Now, if you consider that to be compressed, well - fine, but IMO it's not.
So you are telling me that there is no such thing as lossless compression because the CD is compressed to begin with? I don't know if that makes much sense. Sorry, there is such a thing as lossless compression. There is lossy and lossless. A CD converted to Apples lossless compression format should result in exactly the same sound wave output.
Also, are recording studios still using mainly analog recording devices? Or are they digital?
This is a good read
Also, the Nyquist Theory is interesting as well. Somehow, I don't think CD quality is as bad, or bad at all, like you are saying it is.