Harvard University Library's Office for Information Systems has released File Information Tool Set version 0.3.1.
Here's an excerpt from the user guide:
The File Information Tool Set (FITS) identifies, validates and extracts technical metadata for a wide range of file formats. It acts as a wrapper, invoking and managing the output from several other open source tools. Output from these tools are converted into a common format, compared to one another and consolidated into a single XML output file. FITS is written in Java and is compatible with Java 1.5 or higher. The external tools currently used are:
