Jim, you can capture the elgato window, and I have done this however there is a small little snag on it. Actually, it isn't small at all. For whatever reason my mac will let me run on a 60fps with everything but when I get to capture the window of the elgato I have to run at 900bitrate and 10 or lower fps to capture the game in HD. Now this would be fine if it didn't start skipping from there, yes I have tried in higher fps and lower bitrate and higher bitrate, I basically tried every combination, it just won't capture the quality that the elgato window provides, it lags and delays and skips the game. I tried with a game that doesn't have so much detail as Monster Hunter, but it does the same thing, it just won't read it well. Now I have taken into account that my mac just won't be able to run the fps, however when i just recorded on the elgato itself it captured everything perfectly so that isn't it. I hope they make the driver soon but as it stands this is starting to be a dampen on my ability to stream on twitch.