Every Movie appears twice

hi, i just bought a new my book essential 3TB, i copied about 900gb of movies on it, everything was perfect but today when i turn on my live tv hub i found this:

http://yfrog.com/gz6ha7j 

and this is happening only with the movies on my book essentials, the rest is fine

i restart the live tv several times, unplugged and pluged again the hard drive, i don’t know what else can i do…

Thank you for your help

Out of interest are these movies duplicated on your hard disc. Have you got a copy on your Hubs internal disc as well a connected disc. You could try clearing the media library and then make the hub rescan by shutting the unit fully off by pressing the remote power off button for 4 or 5 seconds and then restarting.