Adobe Director has effective built-in memory management that is sufficient for most projects. To make memory available for new sprites, Director simply unloads the cast members used for sprites that are no longer on the Stage. However, sometimes large cast members, such as high-resolution images, large sounds, or digital video, can take longer to load or unload than typical, smaller cast members, and this can cause slight delays in movie playback. If you test your movie on computers with the lowest level of acceptable performance, you can determine whether any of these delays occur and make changes to correct them.

This chapter describes how Director’s memory management works and the steps you can take to ensure smooth playback of movies with large amounts of media.