Best recording program for Empyrion?

Preferably one that records 24/7 that allows you to hit a button so it saves the last hour or so. And preferably in RAM because otherwise it will kill my SSD’s. And preferably one that doesn’t drain too much because FPS is bad enough in PVP.

What do you all use?

Nvidia shadow play.

OBS (Open Broadcaster Software)

I prefer OBS over shadowplay because the way shadowplay handles recording voip is idiotic (can’t bind push to talk to a mouse button).