Sony A900 Instruction Manual page 142

x For Windows
Double-click on the tasktray, then click (USB Mass Storage Device)
t [Stop]. Confirm the device on the confirmation window, then click
[OK].
The device is disconnected.
x For Macintosh
Drag and drop the drive icon or the icon of the memory card to the
"Trash" icon.
The camera is disconnected from the computer.
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