Replay Media Catcher 3.01 works fine for me. It doesn't re-record the same ad when it is re-played which is great. And I was able to save/download/rip/capture/record several video clips with it. These .FLV videos are streamed from brightcove.llnwd.net through the RTMP protocol.

You may also try other RTMP Flash stream recorders like Bit Recorder.