This audio and video is from the 1994 Lissencephaly Network conference that was held in Chicago.  I apologize for the poor video quality – this was shot with a hand held camcorder and my hand was not very steady.  The clarity of the video also is not the greatest as I was at a distance. 

Lissencephaly Network 1994 Conference Audio (MP3)  Right click and “Save Link as” to download.