Beware of using the card as a removable storage device for your trip.
ie the act of removing it from camera & reinserting it into a drive can break it. It's happened to me once (problem of the reader - i threw card away & then had the same problem when inserted 2n card & realised what was happening. After initial shock I managed to recover the pics the 2nd time)
I now take a usb lead and download to pc with that. The xd/sd stays put in the camera.
Cards & drives do break/get lost/stolen. Always back up.
