The player plays many formats. That's it with the positive. He freezes him at irregular intervals, a simple. It helps just to pull the power plug. He also recognizes 2 of 5 hard drives not. This work on all my PCs without problems not only on the WD TV.
Have therefore sent back and look around for an alternative.
EDIT: have now found an alternative to the Hi-media Q5quad. On Android 4.4 base even with 4K and 3D ISO support. Detects all my hard drives, and USB 3.0 connection