This is a ROME plug in that implements the Content RSS extension.
http://purl.org/rss/1.0/modules/content/
Note, this supports both the "Original" syntax via the ContentItem object
and the "New" Syntax via the ".getEncodeds()" method on the ContentModule.
Sample Usage:
SyndFeedInput input = new SyndFeedInput();
SyndFeed syndfeed = input.build(new XmlReader(feed.toURL()));
Module module = syndfeed.getModule("http://purl.org/rss/1.0/modules/content/");
ContentModule content = (ContentModule) module;
Iterator it = content.getEncodeds().iterator();
System.out.println( it.next() );