It's a high frequency whine that comes and goes, but always in the same scenes on "Nemo". It comes out of the center and left front.
Maybe it is just the disc I have, but I doubt it. 2x6 didn't seem to be able to hear it at his place so it is possible that I am a golden-eared audiophile.
BTW, I wasn't trying to be bitchy about a thread hi-jack. Carry on.