I have owned the Chopin concerti by Demidenko/Kissin with this same orchestra-conductor combo for about a year. They are excellent performances by entirely different style pianists.
A year prior to that recording was this one with Garrick Ohlsson, playing both concerti, and is was coupled with a very good documentary on Chopin "The Art of Chopin". Some reviewers of this dvd-only release complained about the sound of the orchestra. This new bluray release has apparently cleared up that problem, at least using the DTS MASTER AUDIO selection. I found it excellent, extremely full and clear. I did find the orchestral opening of the #1 a bit prosaic, with little jauntiness. However, as the concerto progressed, matters improved dramatically. Ohlsson has a wonderful touch with Chopin, and it is no exaggeration to say that he transports you to another place with his delicate and sensitive playing. Time stands still, at least for me. Concerto #2 is no less impressive.
If you are looking for barnstorming performances, this will not be your cup of tea. These are time-honed, reflective outings by a man who loves Chopin and is not afraid NOT to show off for the sake of it. There are multitudes of Chopin virtuosi who are heavy on technique but have a dearth of "soul". I am not a pianist, but I am in awe of artists like Garrick Ohlsson.
I have not heard the well-reviewed Barenboim set, but I'm told it, too, is special.We should be so lucky!
I bought this from Amazon UK. The delivered price for bluray was less than $30. When you buy from them, your cart price will be about $5 less than advertised. Plus they often offer faster releases than Amazon USA.
Well worth your consideration!