Sony PCG-GRX570 Manual

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Using PC Cards 
  Caution: 
 
Do not strike or shake the notebook while writing data to a disc. 
Always use the AC adapter as the power source for your notebook if you are writing data to a CD-RW or CD-R disc.
Using battery power may result in data transfer failure. 
Your notebook includes two PC Card slots. PC Cards enable you to connect portable external devices such as another hard
disk drive, or a PC Network Interface Card (NIC) to connect to a network. 
  Note: 
 
The PC Card slots can accommodate two Type I/II PC Cards, or one Type III PC Card. These slots are compatible with
CardBus. Use the lower slot for Type III PC Cards. You do not need to shut down your notebook before inserting or
removing a PC Card. 
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