Poor Video after importing from Camcorder

I am inputing from a Canon Elura 100 which uses MiniDV. Used many times with PC with excellent quality. When I input to IMovie the picture appears very sharp as it is downloading. It appears to have loaded a high resolution since 20 minutes occupies about 6GB of storage. However, all of the clips, any movies I render all are very fuzzy. When I got to Share and Media Browser it only lets me render in Mobile. I tried exporting at high definition with no better results. Using my PC on this material, the DVDs are of high quality. What is wrong?