Capture Card

I was playing with Seemliss the other day on Xbox and he said to get a cap card.
Anybody have one or have any recommendations for a decent one?
I heard Dazzle and Black Magic aren't too bad, but I don't feel like spending $300 for a Hauppauge.

What the fuck is a capture card?

Do you record game play with it or something?

Yes it records gameplay great for making montages.


Black magic seems to be best and HD.