If it helps.....the unit worked fine on COD Ghost, but not on GTA. GTA recordings were rubbish, fragmented, and very poor. Audio worked though..
The solution, adjust the source options to the other setting.
This on PS3, standard game capture, matched to a two year old Toshiba G6(?) laptop, with a mess of cables.
Not a very techie post, but neither am I . May possibly save someone else some time.