Yes, his Ravel and Debussy were considered landmarks, and are very beautiful, effective recordings. I considered his Gaspard de la Nuit the greatest I've ever heard, facing some stiff competition. Also, he recorded the complete Mozart sonatas, but these sound rather dated. He unfortunately suffered many charges after the war due to his close relation with the Nazis (he was Hitler's favorite pianist), like Furtwangler, only he didn't recover from it so well. To what extent he collaborated, I have no idea, but his recordings after the war don't quite have the spirit of his earlier ones. He was a pedaling genius, and a very great pianist.