Any alternative suggestions? My reasoning is because the touch is very clean and sure, and the speed is kept steady and controlled (and one of the slower recordings I have). The recording is also very clean and the piano has the timbre of Arrau's - what makes you (and prometheus) think it is not Arrau?
I liked this playing, but I don't think it's Arrau, four reasons.
1) The running 16th note passages on pp.2-3 of the Dover edition are shaky, as are some other things. This recording had some excellent playing in it, temperment, good fortissimo and playing and a good sense of phrasing in the lyrical parts. My guess is that this a is a talented young pianist who is in graduate school or doing the competition circuit. Arrau's playing had much more maturity and command than this. As Prometheus points out there are signs of a struggle in this recording.
2) The tone is wrong for Arrau. This tone is good, but it has a sharp edge to it that was never present in Arrau's playing, his tone was always smooth and rounded. And the phrasing seems "modern" to me; not sure how to describe that any other way...
3) Arrau was a Steinway artist and I don't think this piano is a Steinway; I could be wrong but this sounds like a Yamaha. If it's a Steinway it's not a very good one, Arrau would have had acsess to a better piano than this one.
4) The recorded sound is very "new" sounding, compressed and tweaked, but not by Columbia or EMI engineers. It's good sound but not like a real pro recording from the 70's or 80's.
About Arrau (btw I'm not really a fan of his) he was certainly no technical cripple, I heard him live in the 80's playing the Dante Sonata and Debussy's Estampes. Not only did he have a huge technique but an extraordinary tone color and warmth and feeling in his playing. He missed some notes but they were inconsequential, like Horowitz' wrong notes in his later years.
But I hate his records! Many of them seem dry, slow, mechanical and academic to my ears. I think he was one of those artists who had to be heard in person to be appreciated. I think he needed the stimulus of the audience to really play at his highest level, some artists don't record well.