The membrane button with the camera and book invokes Canon's Story Creator, a guided shooting mode intended to help you shoot a variety of content on a given topic. Basically, you choose a theme, such as Party or Travel, and the camcorder provides a list of scene options, like "Planning for the trip" and "Taking off!" They're organized in-camcorder, and you can rate individual scenes for playback filtering. There's also a generic, themeless story if you just want to use it for organizing a shoot. The files reside in the normal AVCHD directory tree, however; the organization is strictly for camcorder-based playback.