Some sort of playback problem

I have used both an externally powered 1TB WD elements drive (3.5") and a USB powered WD Elements 750Gb drive (2.5") without issues. I do remember this matter being discussed a while back and it was recommended to format your drive with your PC before using it with the WDTV even though they come ready formatted. I did with the ones I used with my WDTV. Maybe its worth a try?

Barry