MediaFrame (mediaframe.org), open streaming media
From the site:
Open source streaming media in Java
MediaFrame is an Open Source streaming media platform in Java which provides a fast, easy to implement and extremely small applet that enables over 97% (AdShadow 2002-03) of web users to view your audio/video content without having to rely on external player applications or bulky plug-ins. MediaFrame does not require special servers, software or programming knowledge (feature list).