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SDP (aka StreamingDownloadProject)[edit] website


Who and what is SDP ?

SDP or the Streaming Download Project is a small dedicated team of independent software coders. We are a nonprofit team with only one goal - understanding (and documenting) MMS fully. Our resulting implementation of our MMS document has lead to the development of a MMS streaming receiver for windows media streaming. So now, not only can you view the streaming media in preview mode, SDP receiver downloads (or copies) the stream to your hard disk. This cannot be achieved with a standard Windows Media player. We believe our project to be the only one of its kind in the world (or at least the first of many!) with other MMS developers using our findings as a basis for their own code implementations. Of that we are proud and glad to be of service. We are always open to comments and feedback and of course your own findings and information on MMS are welcome.

Remember, SDP can now download the following protocols, not just mms:

  • Http v1.0 streaming protocol
  • Http progressive (simple http download)
  • mms
  • mmst
  • mmsu

Note: The current version of SDP (2.0.0) does not support RTSP streaming. This will be featured in the next release.

What is MMS?

MMS or ' Microsoft Media Server ' protocol is Microsoft's proprietary network streaming protocol. Microsoft has never released a specification to describe how MMS actually works, yet it is extensively used by their Microsoft media player software. MMS protocol can be used on top of TCP and UDP transport protocols over any network medium. Its primary use is to stream live or prerecorded audio and video content to your computer without any need to download a file before playing.


This is a windows based app. Binary. The group who made it has documented the protocol and published it to motivate others to make their own apps. The site is here

Any other applications like this for other OS's ?