Final Cut issues?

I have the cannon elura 100 camera which is not the best camera, but is still fairly good and captured it to my mac with firewire. Then edited my video and it looks good on quicktime and my display in final cut. but when I transfer it to the iDVD and burn it the picture comes out sharp, but the image leaves trails almost like the frames were not blened together exactly. I am new to this but I chose the best quality I can get and it looks like crap on both the videos I have made. I have been searching through the manual for a while now to find out how to fix it, but cant figure it out. Also when I say the images were not blended together right i mean that there are lines across the screen that dont match up. Please help, thanks.