By default if XP detects a stoarge card with a capacity of 32MB or greater it will attempt to format it as NTFS which is not compatible with your camera (Canons and Nikon cameras use FAT16 or FAT12) This means the card formatted in your camera is detected by Windows and can be read but when you attempt to use Windows to format it it presents an unrecognised format and Winodws assumes it is write protected.
As already mentioned you shouldn't routinely need to format your card (although many users do this as an alternative to deleting all there files after transferring them) but you should always use your camera to format the card, NOT Windows.
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by: nobusPosted on 2007-12-27 at 01:21:15ID: 20533039
Why do you want to format the cards everytime? that is NOT needed at all, just delete the pictures from the SD cards