I am unsure. I think this is how it works. Maybe someone can correct me. I think if you are watching a DVD movie or playing a game like Borderlands, I don't think it will save those. It might not hybernate at all if those are running. But, if you have something like a Word document or an E-book up on the screen, I believe it will save that and reopen those items when you come back out of hybernate.