I received Deutsche Grammophon's new Wilhelm Kempff edition this week. Although I have many Kempff recordings, I bought this set to get the chamber music and mono Beethoven Sonatas set, along with the 78rpm recordings in one convenient package.
While listening, I stumbled onto something rather startling: eight bars are missing from the coda of the 1951 Beethoven Appassionata. Those who know the piece will immediately recognize what's missing below.