MP3 player above, WAV player below

If you opened this node and hear the same message being played twice (at the same time so it sounds like an echo), your browser is compatible with both MP3 and WAV audio presentations from this website. You should see two players at the top of this frame.[The upper player is MP3, the lower player is WAV.] You can restart each to see what is happening. If you see zero or one players your browser needs configuration to play audio files.

If you only heard the message once (no echo), your player did not play either the WAV or MP3 formatted file. You may see only one player. Test using the player you see displayed and its location above or below the descriptive text line.

If you haven't heard anything, your browser/player plugin is having trouble and failed to play either the MP3 or the WAV file.