How to "extract" audio in new iMovie '08

This should help out those who are freaking out about deleting audio in clips. This is what you do, as it seems a little tricky. 1.) Click the "Adjust audio button", then seleect the clip you want to mute the audio from. 2.) in the Audio Adjustment window, select "Reduce volume of other tracks" and slide the fader to 0". Select Done. This may or may not work first time. If it does, great, if it doesn't, select the clip again and repeat step 2. This worked for me. I'm finding this program to be better and better the more I use it. Still needs some work though, and the video quartz effects missing from old version.