Again, not true. Recording/capturing in SD(DV) can easily be made into DVD format. This does not require shooting in HDV format. Perhaps you should leave the technical responses to those of us who know the answers or at least have a better command of the English language. No offense, but your post is filled with bad information.But I will recognize your problem.
If you want Authoring and Recording DVDs, you first can capture ALWAYS under HD resolution (and ALWAYS record under HD, never SD), and then with captured m2t file you can re-encode from HD to SD resolution. And then make DVDs with menu etc.