From 1970 to 1993, Lupu made over 20 recordings for Decca Records; although he has not released any commercial recordings for the label since, he continues to be an exclusive Decca artist. His solo recordings, which have received a lot of acclaim, include works by Beethoven, Brahms, Grieg, Mozart, Schubert, and Schumann, including all of Beethoven's piano concertos as well as five piano sonatas and other solo works; the Grieg and Schumann piano concertos, as well as three major solo works of Schumann; nine piano sonatas and the Impromptus and Moments musicaux of Schubert; various major solo works and the first piano concerto of Brahms; and two piano concertos of Mozart. His chamber music recordings for Decca include all of Mozart's sonatas for violin and piano with Szymon Goldberg; the violin sonatas of Debussy and Franck with Kyung Wha Chung; and various works by Schubert for violin and piano with Goldberg. He additionally recorded works of Mozart and Schubert for piano four-hands and two pianos with Murray Perahia for CBS Masterworks, two albums of Schubert songs with Barbara Hendricks for EMI, and a disc of works by Schubert for piano four-hands with Daniel Barenboim for Teldec.