Here are the videos showing the different boot times using a HGST Travelstar 7k1000 2.5-inch 1tb 7200rpm sata iii HDD.
All apps that are run are the digital versions of the game. I didn't actually time anything but you can hear when the app starts and see when it's loaded so if someone wants to go in and record the times, feel free. I'll update the videos descriptions/ this post with that info.
PS4 Cold Boot:
https://www.youtube.com/watch?v=Lm0leNcOz_U
Blacklight: Retribution:
https://www.youtube.com/watch?v=kEuR-P4y6cM
Warframe:
https://www.youtube.com/watch?v=kMpih2n124s
Flower:
https://www.youtube.com/watch?v=wRU3Nvo-iSU
DC: Universe:
https://www.youtube.com/watch?v=oTwXFGSSXVc
Contrast:
https://www.youtube.com/watch?v=d9Sib1EqVP4
Assassin's Creed 4:
https://www.youtube.com/watch?v=DbYrhrGNTAw
Kilzone: Shadowfall:
https://www.youtube.com/watch?v=x58mZ9hWdhA
COD: Ghost:
https://www.youtube.com/watch?v=EqHC6PjPh9g
oh wow :O that is pretty damn quick.