What are the first three letters of the database files used in Avid Media Composer?

The database files used in Avid Media Composer are identified by the first three letters "MSM." These files, which include MSMFMID and MSMFD, play a critical role in the media management and organization within the Avid editing system. The MSM acronym stands for "Media Storage Manager," and these files help the software keep track of all the media assets in a project, including video, audio, and graphics.

Correctly identifying and understanding these files is essential for efficient media management, especially in larger projects where keeping track of numerous media elements is crucial. The other options represent different file formats or identifiers that are not utilized as the primary database files in Avid Media Composer, making "MSM" the accurate choice for this question.