Var der ikke noget du kunne bruge, i dit sidste spørgsmål ???
Ja, go kvalitet og lav båndbredde - så er det mpeg4 du skal bruge. Men med en acceptabelt kvalitet, så skal du også godt med båndbredde.
Microsoft har lavet et format der hedder ASF (Advanced Streaming Format), som er lavet til at komprimere video med, som skal streames.
<klip>
This file format stores audio and video information, and it is specially designed to run on networks like the Internet. This file format is a highly flexible and compressed format that contains streaming audio, video, slide shows, and synchronized events. When you use .asf files, content is delivered to you as a continuous flow of data. You no longer have to wait for your audio and video files to fully download before you start to view them. When an Audio Video Interleave (.avi) file is compressed and converted to an .asf file, the file begins playing after only a few seconds. The file can be unlimited in length and can run over Internet bandwidths.
</klip>
Du kan læse lidt om ASF her:
http://www.microsoft.com/windows/windowsmedia/format/asfspec.aspx