Livekey

What cards support Livekey and what are the file types. I can Livekey with my DeckLink HD Extreme 2 but can't using my Decklink SDI using the same files, is it not supported with the Decklink SDI card?
It tells me "The key is not a file format understood by Livekey". I am using a 720 x 486 targa file.

AFAIK internal keying is only supported on the Decklink HD Extreme 3D. You may be able to use external keying on other cards, but not with the Livekey utility, because I think it does not support external (fill/key) keying.

Didi