New Voices/Nuevas Voces presents audio and video files in Quicktime format. To play these files, you need to have the appropriate plug-in installed.
System requirements for Quicktime are available at:
http://www.apple.com/quicktime/download/system_req.html
You can download Quicktime for Windows or Macintosh from the
Apple Web site at:
http://www.apple.com/quicktime/download/
Test your installation at:
http://www.apple.com/quicktime/troubleshooting/