What are the two primary items that define a project's format?

The correct choice focuses on raster and frame rate, which are crucial components in defining a project's format. Raster refers to the pixel dimensions of the video image, indicating how many pixels are used to create the visual content. This affects the quality and clarity of the image, dictating how it appears on different screens.

Frame rate is the number of frames displayed per second in a video, significantly affecting how motion is depicted. A higher frame rate can result in smoother motion, while a lower frame rate often imparts a more cinematic feel, as is seen in film.

Together, raster and frame rate play a fundamental role in the overall presentation and viewing experience of a media project, influencing not just how the final output looks but also how it is processed and played back on various platforms. Understanding these elements is essential for anyone working with video in AVID Media Composer, as they define the technical specifications critical to project setup and execution.