These streaming video clips are provided in RealVideo format and require the RealVideo Plug-In/Player to view. The player can be downloaded for free from www.real.com. If you are connecting via a high-speed connection (i.e., cable modem), then you can view the "high bandwidth" videos. If you are connecting via low-speed (i.e., phone line) connection, then you may want to try the "low bandwidth" video.
These streaming video clips are provided in QuickTime format and require the QuickTime Player to view. The player can be downloaded for free from www.apple.com/quicktime.