Cortado is an open-source cross-browser and cross-platform video playback solution based upon Java technology. Leveraging the huge installation base of Java it allows web-authors to deliver Ogg Theora content without having to worry about the media playback setup installed on customers' machines. This enables e.g. Wikipedia to deliver Ogg Theora video content embedded into articles to millions of users. Originally developed at Fluendo, Cortado's latest versions are now maintained by Xiph.org. If you're interested in using free media delivery technology, e.g. to avoid the costs adjunctive to non-free technologies like H.264, and want to reach a big potential user base, Cortado may be the solution you've been looking for.