Quicktime 7 is a buggy POS or...
All I want to do is watch the new Pixar Cars teaser trailer, but having recently "upgraded" to Quicktime 7, the audio output is a jerky, scratchy piece of shit. Apparently, I'm the not only one experiencing this. It appears to be OS-independent which suggests a problem with the codec.
(sigh)
Time to do a downgrade and roll-back to QT 6.