Sound could be a little better

The compilation of tracks is quite ok When sound from a stereo system but fall in several titles too strongly emphasized and slightly metallic sounding highs on.
Not all items are equally affected. But sometimes it works but a bit disturbing.
Nothing against remastering, but the sound quality has to be right.
Have the engineers today cotton in the ears ?.
Those looking for hits from this past time, this 3-disc CD can certainly buy, because the sound quality is not extremely poor.