Someone else reported this on a mailing list or another forum, but I can't find the reference. Can you provide a URL and details about the sound member it uses (format, bitDepth, sampleRate)
The audio is in a number of casts linked to various Director movies.
Each audio cut was brought into the cast and used in the movie with a sample rate of 44.100kHz, a bit depth of 16 bits. All cuts are mono and are in the .aif format. The casts are shocked along with everything else in the project. Shockwave Audio Compression is selected in the Publish settings and compression is set to 24 kBits/second.
You can see/hear at http://www.dxrnursing.com/NursingTutorial/nTut.html