Elgato Game Capture HD60 can't capture any PlayStation 3 (PS3) gameplay.
Elgato Game Capture HD60 only accepts unencrypted HDMI input that doesn't protect the signal via HDCP.
The PS3 outputs video via HDMI that is protected via HDCP.
That means that Elgato Game Capture HD60 cannot capture any video from the PS3.
To capture PS3 gameplay, you can use the original Elgato Game Capture HD hardware, along with a special PS3 cable that comes with that unit. That older Elgato Game Capture HD unit captures a Component/D-Terminal signal from the PS3 that is analog, and therefore not protected via HDCP.