How to use Replay Media Catcher to capture .FLV videos from embedded flash player:

1. Open Replay Media Catcher and hit the record button.
2. After that (and only after that) navigate to a web-page with an embedded flash player.
3. Start playing your .FLV video in the embedded flash player.
4. The recording will start automatically.

If you have already opened a web-page with an embedded flash player before, you may need to reload the page.