Instruct: Classify an Amazon review as either positive or negative.
Query: Schubert Complete Piano Sonatas: Walter Klien, pianist

Volume 3, CD 2 is apparently identical to Volume 2, CD 1 according to the information my computer provided when I inserted the CDs. Actually, the music is different for these two CDs, with the exception that the last two tracks on these two CDs are identical. It is not possible to decide what one is listening to, since the music does not match the descriptions. Walter Klien is an excellent pianist; the recordings are of high quality -- what a shame that the labeling is messed up!