Problem might be, and I am loathed to mention it since I have pre paid for two Steelbox copies for USA forum mates.

The Steelbox version would be PAL region, not NTSC., and subsequently 'MIGHT' not work with USA based NTSC PS4 units....why in this age of Plasma/LCD and LED /OLED technology that CRT screen refresh rate is still a cause for this, a now defunct technical issue, is beyond me.