see http://chezdom.net/blog/?p=61

odt2dtbook is an OpenOffice.org writer extension, enabling export to DTBook XML (part of the Digital Talking Book specification), including support of Mathematical content conforming to the MathML Modular extension of DTBook.

odt2dtbook is very simple to install and to use. Video tutorials have been designed to provide an easy start to users (installation, use). One shows how to install it, one how to use it. They are available on the project web page: http://odt2dtbook.sourceforge.net.

odt2dtbook has recently received the OpenOffice.org Community Innovation Program Gold Award. See http://www.sun.com/aboutsun/media/features/2008-0924/