Did you follow these steps and it didn't work???
1. Turn off the Zi6.
2. Remove the memory card and verify that you are using the correct type of memory card. (For more information, refer to your camera User's Guide, available at
Interface Selector.)
3. Put the memory card back in the video camera.
4. Press and hold the Delete and Review buttons at the same time, and turn on the camera. The Settings menu appears.
5. Using the joystick, scroll down to Format.
6. Select drive D for the memory card. (Drive A is for the internal memory.)
7. Press the joystick (OK button) to format the memory card.
8. When formatting is finished, turn the camera off and back on again.
Is it an SD or SDHC memory card???