WD TV Live Hub freezes/stops playing

Hello

I have my media files (mostly mkv) on my WD My Book Essential external USB drive and while playing a media file the playback suddenly stops/freezes. It happens very randomly 3 or 4 times during a normal movie. My possibilites are to press “Stop” on the remote and resume the movie, or wait until movie restarts playing. When the movie stops playing the HD indicator on the “My Book” stops flashing. It seems to be a FW problem, because with latest happens more frequently.

Only happens with external HDD, never with internal.