This is the MP3 audio-file from Samuel Thibault's FOSDEM 2008 Conference 
@ Brussels, titled: "how accessible is Debian for blind people?"

See also http://brl.thefreecat.org/fosdem.odp for slides
or 
visit http://www.thefreecat.org / http://brl.thefreecat.org/ for more about 
Sam's projects/contribs/devels/etc.