This Compact Disc (CD) is compatible with both Macintosh and Windows- based computers. Video Clips, Web links, and text pages contained on this CD are in QuickTime and Adobe Acrobat formats. Adobe Acrobat Reader4.05 for Macintosh is contained within this CD, but must be configured to work with your systems browser for this CD to be fully functional. Until Acrobat has been configured, you will get an "unable to follow this relative link" error message when trying to access the web-links from within AcrobatReader. When Acrobat opens select File>Preferences>Weblink, then use the browse button to navigate to your browser, then select the connection type. Acobat seems to work better with Internet Explorer. Go to your systems help menu, or the Apple website for additional support on installing new software if needed. If your computer already has these software components installed then you should be able to navigate and utilize this CD fully by using your mouse/cursor to click on the active buttons found on each page. Active buttons are words or graphic icons that will cause the Mouse/cursor to change from an arrow to a pointing hand when dragged over the active area; clicking on or in this active area will navigate the user through the materials on this CD. All of the graphic and text elements that could be buttons are visibly obvious, but not all buttons are active. Do not expect every possible button to be an active area. Only the minimal amount of buttons needed to navigate this CD have been made active. The web-links contained within the text and graphical materials on this CD use your computer's browser and require your computer to already be logged onto the internet through an ISP or other network to connect to linked websites. If your browser is unable to link to the website you've selected, check to be sure you have a good internet connection.