None free, but I have used:
SnapzPro: http://www.ambrosiasw.com/utilities/snapzprox/
ScreenFlow: http://www.varasoftware.com/products/screenflow/
SnapzPro: http://www.ambrosiasw.com/utilities/snapzprox/
ScreenFlow: http://www.varasoftware.com/products/screenflow/
If the stream is a format that can be played through the Quicktime player (Quicktime or Windows Media) then the stream can be saved in the player after playback if you upgrade the player to Pro.








