CPU I5 4950, Nvidia GPU GTX 970, ram 8g, Windows 10 64. I emailed Steam and got this reply...
Thanks for contacting Steam Support.
SteamVR currently provides support for the HTC Vive, Oculus Rift, and the OSVR HDK. Other devices may be used with SteamVR, however, your manufacturer will need to ensure that they have written OpenVR compatible drivers. Please continue to work with them directly.
Thanks for using Steam,
So they wont be of any help.
I did however download Whirligig and video plays really well, better than all the others listed above, probably on par with SteamVR but am able to manipulate more settings with Whirligig.