1 choose project ] project settings ] general.
2 click the advanced settings button.
3 under editing aspect ratio on the general page, select the aspect ratio that matches your source material. this ensures that your effects will be displayed with the correct proportions.
4:3 select this if your video was recorded using the standard tv screen format.
16:9 select this if your video was recorded using the widescreen 16:9 format.
if the editing aspect ratio isn't set correctly, certain effects may appear distorted (that is, squeezed or stretched horizontally). make sure you create all animations, titles, and graphics for your production using the same aspect ratio as your source video. for example, when creating your own organic wipe patterns for use in a widescreen production, make sure you create your organic wipes with a 16:9 aspect ratio. for more information, see "creating a production in 16:9 format" on page 61.
4 click ok to return to the project settings dialog box.