Here are a few instructions that will help you navigate this site:

In order to hear the sample heart sounds, your computer must have a sound card and speakers.

Audio and video files are delivered in the RealMedia formats.
Click here to download the RealMedia player if necessary. When the page loads, look near the bottom left of the page for the link to the free Basic player version.

If the player indicates a need for additional software, allow the download.

Click on blue, underlined text for more information on a topic.
The additional information may be text, audio or video.

To find your way back to a particular place, refer to the links at the bottom of the pages.