[brazen1]

So, to be clear, if I all I need to do is add XDR as a 4th player to my existing playercorefactory, making sure it points to XDRFE.exe (once it gets put in the directory via your app), all 4 players will show in 'play using' including XDR? If so great. Comparisons are only a couple button clicks with no hassle. The player setting is going to change when XDR is used and revert to default when it's closed to allow madVR subsequent playback use default settings. Now I understand. TIA.

MPC HC and MPC BE at the same time from the desktop for testing one title is also a good idea. Then one can retain a simulated .cal setting without affecting the other.....