I'm not very good at making comparisons between performances, but I highly recommend Charles Rosen's set of the last six sonatas on Sony Classics (it's a specially-priced 2 CD set). To me, the performance seems very transparent, as if the composer is speaking directly without the distortion of a performer. Dan Schmidt | http://www.dfan.org Honest Bob CD now available! | http://www.dfan.org/honestbob/cd.html