your example isn't really empirical evidence of anything. :) Of course, you are correct. Point well taken.
But you know what I meant, though... the probability of three tracks out of a random four being from the same playlist (out of 165 playlists total) is pretty low given the assumption of true randomization. I am pretty weak when it comes to the mathematics of probability, but it seems to me that the likelihood of this happening is about 1 chance in 27,000. Of course, I'm probably wrong about this, too.

I'll betcha that you could show me the math involved in calculating this, though, and I'd enjoy seeing it.
tanstaafl.
"There Ain't No Such Thing As A Free Lunch"