I dont know about region free. I bought a UK great wall blu ray, and it turns out to be it didnt play on my ps4 even though it is universal.
Samsung 3D UN65H7150;Yamaha RX-A2070 5.2.4 Atmos/DTS-X
Def Tech L&R Promonitor 1000 Procenter 2000 Promonitor 800 ceilings & surrounds
SVS PC12 Plus-Klipsch KSW150 Sub;Monster HTS 2600MKII Power Conditioner
Oppo UDP-103 Bluray;Apple TV 4th Gen;Harmony Elite;PlayStation 4
AC Infinity Aircom T8;MediaLight Quad Bias Light