eioI love Sofronitsky.I have several collections of his recordings, including Melodiya, Vista Verdi, Brilliant Classics, and Denon (which is Japanese I believe). I find all of his recordings wonderful. Technically, some are better than others, but the playing is uniformly superb. He also recorded with the Beethoven Quartet (Oistrakh, Gilels, Sofronitsky & Mershavov).Victor Merzhanov a disciple of Feinberg is indeed a giant himself just beside Neuhaus and Sofronitsky my favorite god....
https://www.youtube.com/watch?v=6B6MU3A61rc
The Feinberg sonatas by the way are unknown treasures of modern piano.....