How to save pure audio/video data?

[StellarWind]

Is it possible to save pure audio/video data being received from the net?
For example, I want to send MPEG4 stream from one computer, and record received raw MPEG4 video data on another computer?
Probably I must select "Raw" encapsulation method on the receiving side. What encapsulation method should I select on the sending side? "Raw" doesn't work.
TIA

[Patryk]

There You can find help:

http://www.macosxhints.com/article.php? ... 0413302786

It works, but recorded file You can play only using VLC:(
I'm using RTP protocol.

Is somebody who knows how to record stream and play it in for examlpe Windows Media Player.