Canon CS100 Mode D'emploi page 49

A transmission error may occur if a power saving feature of the computer is activated

during the upload.
If the power saving feature of the computer is activated, the communication with

Connect Station will be disconnected.
While downloading images from a camera/camcorder or card, uploading images from

a computer cannot be performed. Likewise, uploading images from multiple computers
at the same time cannot be performed.
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