That link was for an older version.
I finally figured it out for 2007.
It was fairly easy.
Click on the Office Button (top left corner, the round symbol...Orb>>)
Down at the bottom, left most button, is PowerPoint Options
Once that is open, click on Advanced
Scroll to the bottom, and look for the Box called SAVE
Save Link Sound... is set by default at 100kb
Change that to 50000 kb, and click OK at the bottom,
done,

Thanks