[pagali]

I can't reproduce this exactly but I was playing around with Settings->Player->DSPlayer->Audio Renderer and although I usually use Optical Out (which stays silent when fast forwarding), Default DirectSound Device produced a VHS-style 'squeaking' of the audio.

^^ Might help you find a solution.

Yes, you're right, Thanks! That does solve the FF audio problem! Mine was set on DirectSound SP/DIF. Only trouble is, I remember now the reason I had it set on DirectSound is that DTS audio wouldn't work on the other SP/DIF choice! (I just re-tested to verify.)

Well, between the two choices, I guess I'd rather put up with audio on FF then to lose the ability to play DTS movies. Interesting they both work as they should in VideoPlayer.