Instruct: Classify the given Amazon review as either positive or negative.
Query: Great Performances -- If You Could Only Hear Them

I began listening to these CDs with great anticipation -- and tossed them out in disgust.Karl Muck was a great conductor of Wagner, but Pearl has put out a set with so much surface noise that I found them unlistenable.These performances are well worth acquiring. These CDs, unfortunately, are not. What I can suggest is that you find a better remastering (I can recommend either Naxos Historical 8.110049-50 or Centaur CRC 2142, both of which contain some of these performances), and avoid this set completely.