Thanks for your message. But just so you know, I support US products and customers. And from what I can tell, this model is for UK. (Correct me if I'm wrong.) So if you want the most accurate information, here's the Samsung UK portal for support on that product: http://www.samsung.com/uk/support/model/UE55D7000LUXXU
Hope this helps you!
I have my UE55D7000 for about a year now.
I always have connected a 500GB HDD passport to view movies in avi,mp4,mkv format. I worked well with no problems and no pauses on the movies.
After a year I decided to use the Recorded TV feature, in order to record digital TV programs (over the air). To do that the TV formats the HDD and performs a speedcheck. All that was done successfully by the TV and I even did a recording for about 10min. The problem is, I couldn't play back the recording from the TV. On connecting the HDD to my laptop I realized that the HDD was formatted by the TV to "RAW" instead of NTFS and became unusable. I tried several times to reformat the HDD but with luck.
Any ideass how to resolve this? Is the RAW format common for this TV? How can I restore my HDD?