Compression suggestions?

Hello, would anyone have any compression suggestions for exporting some title graphics for a DV NTSC quicktime movie for DVD so it will look the best it can possibly look? It seems if I leave it as is the quality looks poor. There are so many options, I used GRAPHICS and it looks very nice, but also very grainy. It is just a logo, and therefore seperate from the movie, so I figured it doesn't have to comply with the DV NTSC format right?