Thanks for the info. I think people can also install Videolan Client to playback Ogg Theora video on any platform from http://www.videolan.org/
Yesterday, I was looking around the Internet for information about how I could embed the Ogg Theora videos into somekind of video embedding options. I found some information and have tested Cortoda, iTheora and mv-embed but non seem to provide a way to use the .ogg hosted at a remote server, nor have double click on the video to go in full screen, nor to provide progressive downloading.
Maybe soon I will at least encode this .ogg to a format which Google Video could take in and so that I could embed here also a Flash video version.