Oh, thanks, that's a misunderstanding on my part. Checking Wikipedia: Ogg is the container and Vorbis/Speex are the codecs. Vorbis and Speex have been supersed

Oh, thanks, that's a misunderstanding on my part. Checking Wikipedia: Ogg is the container and Vorbis/Speex are the codecs. Vorbis and Speex have been superseded by Opus.