BrainBytes : Photographic Memory.

photographic memory is an ability to recall images from memory after only seeing it once, with high precision for a brief time after exposure, without using a mnemonic device. Although the terms eidetic memory and photographic memory are popularly used interchangeably,[1] they are also distinguished, with eidetic memory referring to the ability to view memories like photographs for a few minutes, and photographic memory referring to the ability to recall pages of text or numbers, or similar, in great detail. When the concepts are distinguished, eidetic memory is reported to occur in a small number of children and as something generally not found in adults, while true photographic memory has never been demonstrated to exist.