These are ten classical and opera recordings I really like.
Schubert--String Quintet Op. in C Major Op. 956, Melos Quartet with Mstislav Rostropovich, Cello
Wagner--Götterdämmerung, Vienna Philharmonic, Birgit Nilsson, Wolfgang Windgassen, Dietrich Fischer-Dieskau, cond. Sir Georg Solit
Strauss--Der Rosenkavalier, Dresden Staatskapelle, Kiri Te Kanawa, Anne Sofie von Otter, Barbara Hendricks, Kurt Rydl, cond. Bernard Haitink
Dvorak--Symphony No. 9 in E minor ("From the New World") Op. 95, Berlin Philharmonic, cond. Rafael Kubelik
Mahler--Symphony No. 1 "Titan", Royal Concertgebouw Orchestra cond. Leonard Bernstein
Beethoven--Symphony No. 9 "Choral" in D Minor cond. Wilhelm Furtwängler, recorded at Bayreuth,, 1951.
Debussy--12 Etudes for Solo Piano, Mitsuko Uchida, piano.
Verdi--Simon Boccanegra, Orchestra and Chorus of La Scala, Piero Cappucili, Jose Carreras, cond. Claudio Abbado
Vaughan Williams--The Lark Ascending and others, various orchestras and ensembles
Mascagni--Cavalleria Rusticana, O and C of La Scala, Carlo Bergonzi, others, cond. Herbert von Karajan