Welcome to the "perfect sound" world of CD my friend. The veil has just been lifted from your ears and you will never fall for marketing hype again!
But to answer your question, modern mass market CDs are poor quality junk for the most part. The problem is that even the guys that try to do it right are limited by the inherent nature of the technology. Digital samples the music. Therefore, by definition, sometimes it is not swampling and there is no way to replace this missing information (regardless of "upsampling" baloney)
Fortunately there is a cure. Its called a record and they are making better ones today than they ever have before.
CDs are for the car.
But to answer your question, modern mass market CDs are poor quality junk for the most part. The problem is that even the guys that try to do it right are limited by the inherent nature of the technology. Digital samples the music. Therefore, by definition, sometimes it is not swampling and there is no way to replace this missing information (regardless of "upsampling" baloney)
Fortunately there is a cure. Its called a record and they are making better ones today than they ever have before.
CDs are for the car.