*To play the downloads you will need Apple's QuickTime Player (see: http://www.apple.com/quicktime). QuickTime Player is available free from Apple for both Mac and PC. Many machines already have QuickTime installed, however if you have an old version it may need updating. The computer specifications required for QuickTime can be found at: http://www.apple.com/quicktime/player/specs.html. The downloads are standard definition (SD) H.264 video files.