Can I bundle Vorbis and another media type (like text lyrics or pictures) in the same file?
Yes. The Ogg container format was designed to allow different media types to be multiplexed together; Theora will be mixed with Vorbis audio in an Ogg container to encode movies. In addition, FLAC can be embedded in Ogg and some preliminary work has been done to put MNG and MIDI content into Ogg files as well.Experimental code is available in the ogg-tools module in the Xiph.org CVS repository. Programmers working on such extensions can discuss issues and questions on the vorbis-dev mailing list.