My longtime Adobe friend Adam Pratt founded the media digitization & preservation company Chaos to Memories a few years ago, and now he and his team have really comprehensive overview of the various formats one may encounter:
Every photo project should start with gathering all these materials because it helps us grasp the scope of your project and work efficiently. To help you identify the different types in your collection, many common photo, video, audio, and digital formats are explained in the list below.