Sony VAIO PictureBook User Manual page 150

When I click an application icon, the message "You must insert the application CD into your CD-ROM
(DVD-ROM) drive" appears, and the software does not start.
 Make sure that your optical drive is connected to your computer.
 Some titles require specific files that are located on the application CD. Insert the disc and try starting the program
again.
 Make sure you place the CD in the tray with the label side facing up.
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