I'm not a professional, but I think you want to export to "Quicktime Movie".
Under options/settings choose H.264, key frames = 24, auto data rate, whatever quality. Under options/size... not sure, maybe "HD 1920x1080 16:9".
No idea on the sound settings. It's probably in the Wikipedia description of Blu-ray discs.
You also need to figure out whether to interlace or de-interlace... that always confuses me.