There's work-in-progress around embedding sound/video files into the ODF container, see here: http://cgit.freedesktop.org/libreoffice/build/tree/patches/dev300/impressmedia-features.diff
There's work-in-progress around embedding sound/video files into the ODF container, see here: http:// cgit.freedeskto p.org/libreoffi ce/build/ tree/patches/ dev300/ impressmedia- features. diff