GPU support for encoding

Yesterday I tried to import a video from a camera and then edit it adding menu systems and finally burning it to a DVD. For a 44 minute video it took the program almost 1 hour to do all the encoding and burning. I check along the way to see what was taking so long and could see that it was only my processor that was working on the encoding. I do have a GTX 770 brand new graphics card and I did think that the program used the GPU to also do the encoding but apperently no. Did I forget to enable something and how do I make NERO 14 to also use my GPU as encoding hardware for faster encoding?
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