MP3 Stats is an easy to use informational tool that will return vital statistics about your MP3 files. That information includes file size, file time, MP version, encoding, frequency, CRC, Copyright and more. In addition it will calculate total size and playing time of all files in a directory.

MediaJoin is a free program for combining your Video/Audio clips into one file. This simple, no frills program makes it easy for anyone to combine their clips. It's compatible with MP3, WAV, MPG and MPEG files. It can also be used to combine Text file and other notes. If you have a lot of notes saved as text files like I do use MediaJoin to combine them into one Text file.

There's quite a bit of hidden information in pictures taken with your Digital Camera and Digi-Info will extract that info so you can view and save it. Types of information include Camera make and model, Orientation, Resolution, Exposure Time, Date, Time, Shutter Speed, Aperture Value, Subject Distance, Metering Mode, Light Source, Flash on/off, Focal Length, Width, and Height, among others.