File Information Tool Set (FITS)
http://code.google.com/p/fits/

The File Information Tool Set (FITS) identifies, validates, and extracts technical metadata for various file formats. It wraps several third-party open source tools, normalizes and consolidates their output, and reports any errors. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog. This has been added to Bot Research Subject Tracer™ Information Blog. This will be added to Web Data Extractors white paper link compilation.