Sony VGN-U750P VAIO Read This First Manual page 57

Reading and writing CDs and DVDs
To achieve optimum performance when writing data onto a disc (also called "burning"), follow these recommendations:
❑ To make the data on a disc readable on an optical drive, you need to close the session when you eject it. To complete this process,
follow the instructions included with your software.
❑ Only use circular discs. Do not use discs in any other shape (star, heart, card, etc.), as this may damage the disk drive.
❑ Do not strike or shake the computer while writing data to a disc.
❑ For optimal writing speed, deactivate the screensaver before writing data to a disc.
❑ Memory-resident disc utilities may cause unstable operation or data loss. Deactivate these utilities before writing data to a disc.
❑ When using your software application to burn discs, make sure you exit and close all other applications.
❑ Never touch the surface of the disc. Fingerprints and dust on the surface of a disc may cause writing errors.
❑ Do not put your VAIO computer into a power saving mode while using the pre-installed software and while using the CD burning
software.
❑ Never put stickers on discs. This will affect the use of the disc irreparably.
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Using your VAIO computer