I recently did a system recovery on my computer bring it back to factory quaility. Doing this I erase every file I had on my computer and had to download them again. I reinstalled Nero 7 Ultra Edition on my computer and once installed I did a Nero Productsetup and installed all the updates available. (This is the same thing I did when I purchased and installed Nero 7 the first time.) For some reason now whenever I go to Nero Startsmart to burn a file onto a DVD the picture or movie comes out with great quaility however without sound. I notice that any file containing the words for example (DVDrip eng AC3) would burn but without sound. The crazy thing is when I go to watch it on my computer the file would play with sound, so it seems to be only when I'm recording them onto a DVD. (Also before I did the system recovery I put all my files into a external Harddrive so they weren't deleted.) What did I do wrong? Please help?