Please see the following blog article, as it describes the use of a card reader as a much easier, faster, and less error prone way to download your photos. In fact there are several important reasons discussed in the article for using a card reader vice downloading from the camera. USB Card readers are also very inexpensive these day, with cost virtually not an issue:
http://camerarepair.blogspot.com/2009/01/how-do-i-download-photos-or-pictures.html
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