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48 Chapter 3 Using Your Computer
Sudden Motion Sensor
Your PowerBook has Sudden Motion Sensor technology, built-in protection for the hard
disk that is designed to help prevent disk failures if the computer is dropped or
undergoes severe vibration.
In general, Sudden Motion Sensor protection does not change hard disk performance
during regular PowerBook operation. Occasionally the Sudden Motion Sensor
technology may be activated by unusually strong vibrations at a time when your
PowerBook is writing or reading data intensively, such as when playing or recording
video or audio. Should you experience dropped frames or sound elements in such a
situation, make sure that your PowerBook is in a stable environment without vibration
or abrupt movement.
Using Your Optical Drive
You can install or use software from CDs or DVDs using your optical drive. You can play
multimedia on CD discs and music from audio CDs. Your optical drive can write music,
documents, and other digital files onto CD-R and CD-RW discs. You can also play DVD
movies and use most DVD discs.
If you have a SuperDrive, you can also record information on blank DVD-R, DVD-RW,
DVD+R, and DVD+RW discs.
Important: The optical drive on your PowerBook supports standard circular 12 cm
discs. Irregularly shaped discs or discs smaller than 12 cm are not supported.
Noncircular discs may become lodged in the drive.
LL3092.book Page 48 Friday, February 4, 2005 6:02 PM