In this paper, we describe our super high-quality video transport system on the Internet. We have researched and developed technologies to transport high-quality video images such as DV format, D1 format and HDTV format which have higher quality than MPEG-2. We have already confirmed thier usefulness and practical use by carrying out experments and events on the JGN(Japan Gigabit Network). Currently, we are doing design and research on application software for Internet broad casting using our video transport technologies. We describe required functions for real-time and distance editing which can be applied to Internet Broadcasting.