I came across this post today:

http://usoproject.blogspot.com/2008/01/first-post-for-2008-xenakis-interview.html

Which links to a video in DivX format for a 20 minute long interview
with Xenakis(!!!) which looks dated from 1995.  The video is
downloadable if you go to the stage6 site, and the user who posted
that video has posted a large array of videos.

Thought many here might be interested!

steven