I thought this recording sounded pretty good, until I heard the earlier release "Rachmaninoff plays Rachmaninoff: Ampico Recordings" (Polygram Records, B0000041WS). The latter is a recording of the Ampico rolls as played on an actual Ampico-equipped piano (an Estonia 9' concert grand). The former (this item) was done by scanning these same rolls into a computer, then transforming the data into a form readable by a Boesendorfer equipped with an electronic reproducing piano system. One would think the two versions would sound identical after allowing for the difference between the sound of the two pianos (an Estonia would have more sustain and more pronounced overtones than a Boesendorfer), except that perhaps the Boesendorfer electronic player version might be a bit more precise. The fact is, however, that the two versions don't sound anything alike. For a good comparison of the two, I suggest "Flight of the Bumblebee." The recording on "Window in Time" sounds positively mechanical compared with the performance on the actual Ampico. Pedal effects, accents, and dynamic contrasts that are barely audible on the robotic "Window in Time" recording come into sharp relief on the Polygram recording, which sounds like an actual pianist playing. The same is true of the other pieces. They don't sound bad on "Window in Time" but listen to the other recording and you will see that much is missing here. I'm not sure if it's the piano or the recording, but if you want to hear what Rachmaninoff probably sounded like, I recommend the other recording over "Window in Time". I just can't believe that Rachmaninoff was this mechanical-sounding, and on the Polygram recording, he wasn't. The Polygram recording sounds like a recording of a great pianist. "Window in Time" sounds like a player piano in comparison.