The new version features more flexible encoding modes, channel coupling, lower bitrate support, and much more.
The package contains:
- oggenc: compresses WAV files into OGG format
- oggplay: Simple command line player
- ogg123: A more fully featured command line player
- OggPlay.dll: A plug-in for PM123, originally written by Sofiya
http://silk.apana.org.au/vorbis/
Source: