Any perfect memory of this nature is actually called an eidetic memory.
From the Wikipedia article on eidetic memory
Scholar Annette Kujawski Taylor stated, "In eidetic memory, a person has an almost faithful mental image snapshot or photograph of an event in their memory. However, eidetic memory is not limited to visual aspects of memory and includes auditory memories as well as various sensory aspects across a range of stimuli associated with a visual image." [Emphasis mine]
True photographic memories have never truly been shown to exist. It's the ability to remember strings of seemingly random bits of information without any pattern or detail that binds them together. (e.g. pages of random numbers)