I have a movie I made in iMovie. I want to share to the Media Browser so I can burn it in iDVD. The choices include Large, 720 and 1080. Which should I choose for iDVD? Obviously it'll be compressed to 4GB for the DVD but should I chose Large and do the compression now or send it as 1080 and let iDVD do the compression? Any advice or links would be appreciated. Thanks.