Advanced Systems Format (ASF)
ASF is Microsoft's proprietary digital audio/digital video container format. In my opinion, it is better than other more popular formats such as MP4. Unfortunately, it is not as widely used as it deserves probably due to its proprietary status.
It is particularly suitable for streaming. Demuxing ASF stream is much easier than demuxing other popular types of streams such as MP4, MPEG-PS.
The following is from Microsoft's ASF specification. Only some parts of the header object and the data object are usually needed for streaming.
