Hello I never had a ps4 /3 so I wonder if you could so that? I know the ps4 isnt backward compatible but I wonder if its limited to hardcopy of the games? Thanks.
No they don't have backward compatibility nor does it have an emulator for them but it will run checks to boot a PS4 version (Upgrade) of some tittles and there will be "Playstation NOW" soon that will work like Netflix for PS1/PS2/PS3 games