John, anti-aliasing filters before sampling were always an essential element of the process and aliasing was never an audible problem. Distortions in brick-wall filters and failure to remove high frequency emphasis which had been used for LPs, but which was harmful with the inherently flat CD, led to some early CDs being harsh. This led to the creation of a mythical monster known as "digital harshness" which still lives in some misinformed quarters today.

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Enjoy the music, not the equipment.