The video and audio is fine in my camcorder.  When I download it to Video Easy 4 HD the video is jerky but the audio keeps going. The program converts it when downloading from the camera.  I have tried filming in Std D, HD, and SHD and get the same results.  I use Windows XP.  So, why is the video OK in the camcorder but not on Magix Video Easy 4 HD?