Country Boy wrote:
Good topic, I did not know it was recommended to format after uploading images. I thought the memory card was like a DVD, where you only format it once to make sure it is in the proper format for the device to write on.
For most cameras formatting each time you upload is unnecessary. Canon however writes data differently then most. Over time if a full, or Low format, as Canon calls it, is not done the card will lose write speed. That's why you are given that option in the Canon format menu.