Convert Prezi to Video.

I am trying to place a completed prezi on Youtube. I realize that to do this, I need to convert the flash to video. I have tried the work-around of recording the prezi via a screen capture application but it keeps coming out choppy and I can't work with this.
I downloaded a converter called Riva FLV Encoder, but I can't find an FLV file in the prezi content to enter for transcoding.

Please help. I need to get this done and I'm just not finding my answer.