searchable video and XMP metadata: another way
A couple of months ago, I posted about a way to do this using Premiere Pro, After Effects, and Flash. This new paper and demonstration show how to use Soundbooth to create an XML file that contains the metadata, rather than using After Effects scripting to convert cue points.
There are many ways to use the XMP metadata features in Creative Suite 4 Production Premium. Hopefully, these two different approaches to the same problem will help you to see the breadth of these tools.