Sony VAIO VGN-N100 Series User Manual page 127

What should I do if I cannot write data to CD media?
Do not launch any software application or allow any to launch automatically, not even a screen saver.
Do not use the keyboard.
Do not use a CD-R/RW disc that has an adhesive label affixed to it. This could cause a write error or other damage.
What should I do if I cannot write data to DVD media?
Make sure you are using the correct DVD recordable media.
Check which DVD recordable format is compatible with your computer's built-in DVD recorder. Note the possibility that
some brands of DVD recordable media do not work.
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Troubleshooting