This is a really useful utility for formatting SDCards. You will loose any data on the card, but it should then be fully functional.

http://www.sdcard.org/consumers/formatter/

Make sure you download, read and understand the manual as well.

Allan, December 2009

This program does not work with my sd card. It tells me that the memory card is write-protected and to turn the switch off, but it isnt on.

Terry, December 2009