Please open the PDF file and click inside the box to play the video. Use PDF's video controls to stop and start the video (right click and you will see the options). You may need to download and install the correct codec to view this video - it can be downloaded from here http://www.free-codecs.com/koepi_xvid_download.htm
This video is approximately 15 minutes in length and is quite large. Therefore it may take quite some time to download.