These tools allow information about (ogminfo) or extraction from (ogmdemux) or creation of (ogmmerge) OGG media streams. Note that I'll use OGM for "OGG media streams".
OggMux is the utility that I got my ideas from - but it's for Windows only. If you need it, header over to http://oggmux.sourceforge.net/ and grab a copy.
Another utility for Windows are the Ogg Media File tools that are command line utilities which are very alike to my ogmtools. Great stuff, Cyrius.
There are several files that you might want to read, including the README, the ChangeLog or the man pages:
You can reach me at firstname.lastname@example.org.