Picture Frame Rate
DVD Studio Pro NTSC projects support the NTSC frame rate (29.97 fps) and 23.976 fps
assets that use NTSC video resolutions. PAL projects support the PAL frame rate (25 fps)
and 23.976 fps assets that use PAL video resolutions. You can set a project’s video standard
in the General tab in the Disc Inspector or in the Project pane of DVD Studio Pro
You cannot mix NTSC and PAL MPEG assets in a project.