There are two reasons that this can happen: 1) You must have a DVD drive in your computer, this will not work with a CD drive. 2) If you want it to automatically startup when you insert the DVD then you must have autorun enabled.
Manual Start 1) Open "My Computer" 2) Right-click on the DVD drive that contains the schematics DVD, and select "Explore" 3) Within the explorer, double-click on the "index.html" file to start.
If you are still having problems accessing the DVD, contact us, and be sure to include all error messages and any other information that might help us in resolving this issue for you.