It is always a good idea to try software before buying it.

Did you purchase Replay Media Catcher only or Audio Video Streaming Capture Suite? Anyway they have a 30-day unconditional money-back guarantee.

I dunno how much time it will take to fix the problem. Maybe they will implement WinPCap like FLV Recorder as well. Usually the way they use to capture packets is more reliable. It works like a firewall. It seems like firewall like software can conflict with it.