Export a Quicktime movie of your completed video. Select your Sequence, and under the 'File' menu, choose 'Export > Quicktime Movie ...'

Use Current Settings.

Launch DVD Studio Pro.

Go To DVD Studio Pro > Preferences

Go to the Encoding tab and change the Aspect Ratio to 16:9 HD OR 4:3 SD for non wide screen DVDs.

Change the Field Order to Top and Mode should be Two Pass VBR
Bit Rate 6.5 and Max Bit Rate 7.7

Motion Estimation should be set to Best

Make a new project with File > New.

Go to Window > Configuration > Extended to change DVD Studio interface

Import the video you just exported from Final Cut Pro.

Drag the QuickTime audio and video from the ASSETS tab to the Track timeline.

Audio should match video exactly.

Click on the Outline tab (1) next to the Assets tab then click on the UNTITLED_DISC (2)