Here's a short introduction of about 60 seconds. If you have installed Real Audio Player click on that selection below. You can download the free player from the site at www.real.com . You will have to look around to find the free player (basic). It's usually at the bottom of their pages and just a link. If you don't have Real Audio click on the Windows Media link below. Many Windows users have a version of this player now.  You can also download it free from www.microsoft.com .

Introduction in Windows Media Format
Introduction in Real Audio Format