JHOVE2 Functional Requirements version 1.3 has been released. (Thanks to the File Formats Blog.)
Here's an excerpt from the JHOVE Project Scope:
JHOVE has proven to be a successful tool for format-specific digital object identification, validation, and characterization, and has been integrated into the workflows of most major international preservation institutions and programs. Using an extensible plug-in architecture, JHOVE provides support for a variety of digital formats commonly used to represent audio, image, and textual content.