You'll need your PS3 game disc every time you want to play your digital PS4 upgrade copy
We've just received a review copy of NBA 2K14, and with it came an upgrade code for the game's PS4 equivalent.
Reading through the upgrade instructions (above), we note that you'll need to insert the game's PS3 disc into your PS4 before you can play your PS4 digital equivalent.
Every. Single. Time.
The "important notes" section below the instructions confirms this, saying "you will need to keep the PS3 disc inserted into your PS4 system in order to play the PS4 digital version of the game. If you eject the PS3 disc form your PS3 system, the game will stop playing."
The language in the upgrade insert would suggest that these instructions are across the board for the PS3-to-PS4 upgrade process, and not just for 2K's title.
Is this a big deal? Not to us. You've bought the PS3 version of the game, and you've spent $21.95 AUD/NZD (in NBA's case) to get a second PS4 copy. To take real advantage of the deal, you need to keep the disc. You can play the game on your PS3, and you can play it on your PS4. You'll just need the disc in whichever platform you choose at the time. This means you can't trade in the PS3 game disc, and you can't share it with friends and play two versions of the game at the same time. Fair enough.
That being said, we do know that budget-conscious gamers mightn't agree with our take on it, so be warned: if you planned on buying the PS3 copy, upgrading to its PS4 equivalent and then trading in your PS3 disc, you'd better think again.