The way I understand it, the majority of recordings out there are mastered for playback on 2 stereo speakers (which actually makes me question the whole SDA thing, but that's for another time). Since they're mastered for 2 speaker playback, I would think that the whole crosstalk thing (being able to hear left channel material in your right ear and the other way around) would be an assumed character of speaker playback and the recordings would be mixed accordingly.
So they know you're going to have crosstalk and engineer the recordings to counteract that.
Now that could all very well be BS because I don't know jack, it just seems like a logical conclusion. I've also seen some headphone amplifiers that have crossfeed doodads, which from what I understand are supposed to 'simulate' the crosstalk that exists with loudspeakers.
So having said all that...
Are there any recordings that stand out or are engineered for headphone listening? I'm building my first legit headphone rig, and would like some good demo material.