Dear Sir, I have desktop w/ the following AMD Semprom 2400+ 1.67Ghz, PNV nVideo Video Card 64 Mb. RAM 2.5 Gb I transfered several Video8 to DVD using Sony digital camcorder. It was O.K. But when I tried to use Sony not digital camcorder and Pinacle 510-USB it did not work. What is a problem? Thank you. Edward