FAQ:Why are there black borders/bars?


 * Either the clip's resolution or its pixel aspect ratio (or both) do not match your project's settings. The following will help you understand the issue:
 * See Tutorial:New Pixel Aspect Ratios
 * See Adobe technical support document kb325883: Exported movie contains black bars on sides (Adobe Premiere Pro).
 * See Aspect ratios in the Premiere Pro CS4 Help.
 * See the following in the Premiere Pro CS3 Help:
 * About aspect ratios
 * Fix aspect ratio distortion
 * Using assets with various aspect ratios
 * See also “Capturing or importing various aspect ratios” in the Premiere Pro 1.x help, especially the third bullet point.
 * See also “About aspect ratios” and “Adjusting position, scale, rotation, and anchor point” in the Premiere Pro 1.x help.
 * Be sure to read and understand the concepts in “What's an anamorphic DVD?”.
 * Steven Gotz said:
 * {| border="0" style="background:#efefef;"


 * The problem is that widescreen needs to have the lower number evenly divisible by both 9 and 8. There are only a few like that. 9X8=72 so use that as a starting point. On the small side, 72X3=216. That would be 384X216 using square pixels. (Width is height divided by 9 times 16)
 * }


 * ...and much more!