Click on the menu button and then press the large round dial up or down to move through the menu. When you see the icon that looks like a hard-sided overnight case, press the little round button in the middle of the large round dial to select it. This opens a new menu - it is several pages long and you move through it the same way - using the large round dial and pressing at the top to move up or the bottom to move down. This is where you will find the "format" command for the memory card. There may be other memory card options as well - I don't know as it is a new camera for me too. However, if you look at the bottom of the screen as you move through the menu, it explains each function. Hope this helps!