Hello,...

The quality of the Epiphan is definitly much better than any HSMI or HDSDI capture, I really tried all. In all kind of resolutions.

And Epiphan gives the best quality so far. Still not the same of a direct conection, but gets closer, and you can read the texts.

YES the frame rate is the question. @ 1024 x 768, I can get arround 20 to 22 fps in Catalyst, sometimes less, if the PPT has to many movement, lieke a movie.
@ 800 x 600, you get the full 30 fps.
Still not perfect, but is the best I saw so far.
That is the 999,00 box DVI2USB ( and captures VGA also on the same unit )

BUT we still looking for a more perfect frame grabber.