Dear SigPort Users, do you want to use audio and video to demonstrate your research results? SigPort has a solution.  Sigport now supports PDF documents with audio/video attachments. Please see our sample files: Sample 1: http://sigport.org/1791    Sample 2: http://sigport.org/1792     How to add audio and video to your presentation slides and posters? Please see this page for instructions.http://www.wikihow.com/Attach-a-File-to-a-PDF-Document