QuickTime
To view most of the videos on this site you'll need the QuickTime plug-in. To download and install the free Apple QuickTime plug-in, please visit the QuickTime Download pages.

PDF - Adobe Acrobat
This site contains some files in the PDF Format (Portable Document Format) which requires the Adobe Acrobat Reader. The free software is available at the Adobe web site: www.adobe.com/products/acrobat/readstep2.html

RealMedia
A few of the videos on this site are in the RealVideo format. To view these movies you'll need the RealMedia player, which is available at Real.com