Stop the recording of streming live video in

I want to use realplayer to record streaming video. I can start the recording well enought by clicking on the little icon that comes up when I mouse over the playing video, but I can't find how to stop the recording when I only want a portion of the video that is beeing stremed. if I just shut it down, it tells me I will cancel the whole recorded session.
My big question is: How to stop the recording and save the file.
If anyn one can help me with this You will save the rest of my hair that I have not yet pulled out in frustration trying to get the recording to stop and save the recorded video file