My head hurts. Which out of these 5 units is best for everything. What I need is 4K, DVD-ISOs, full menu BD-ISOs, MKV, FLV, HEVC h265, h264, AVI, DIVX, DTS HD, HD Master Audio (bitstream fine) Gigabit, USB 3.0. I just want to be able to connect to my PC via the network (Windows 7 PC) and play...