Sony Vaio VGCRA830 Owner's Manual page 67

Sharing Memory Cards
If you plan to share your memory card between your VAIO
the card must be formatted properly.

Format the memory card by using it in the device first. See the information supplied with the device for details how
to format the memory card.

If your device does not recognize memory card that has been formatted by your computer, follow these steps:
1.
Save the card's contents to your hard disk drive.
2.
Reformat the memory card using the device, not your computer.
computer and devices such as a digital camera or music player,
®
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