bdb2 is a Scripts software developed by Dan Janowski. After our trial and test, the software is proved to be official, secure and free. Here is the official description for bdb2:

Marydown Editor: Bdb2 implements Berkeley DB support. It is a compelte rewrite from other versions and more stable. It is an almost exact implementation of the native BDB interface, so the sleepycat.com documentation can be used, almost Verbatim.
* Development Status: 4 - Beta
* Intended Audience: Developers
* License: BSD License
* Operating System: POSIX
* Programming Language: C
* Topic: Database