Here are some suggestions that I read online - would any of these work?
1) If you split into 2 partitions, like 1.5+1.5Tb
2) Reformat drive using Windows 7
3) Here is someone who tried something else: I connected my 3TB HD to my laptop (running Windows 7) and deleted all "Seagate Backed Up Files" from the hard drive. I only left what was factory installed. Then I noticed the WD TV Live SMP had created a folder on the HD. Then - for no paricular reason - I moved 1 movie file to the root (top level) of the HD. I also placed 1 movie file in the folder the WD TV Live SMP created. All remaining movies (a total of 289 movies - mp4, avi, mkv, mpg) were in 1 folder, labeled "Movies". Maybe it was stupid, but my thinking was, I wanted to give the SMP every possible avenue to recognize media files. I connected the Seagate 3TB HD back to the SMP while it was unplugged. I then plug the SMP in and it powered on, and within 30 seconds or so it was on the home page. Then I accessed the hard drive through the "Files" tab on the dashboard., instead of going through the "Video" tab - which showed nothing at the time. The movies were immediately found through the "Files" tab! They had difficulty playing through the "Files" tab, so I wen t back to the "Video" tab and "Ta-Daa!" all of my movies were there! ALL 289 MOVIES! And they all played! (I checked about 20 various movies and file types. No glitches and no pauses! It worked seamlessly!