Finalize Feature in iMovie

Today, a user came to the desk asking why it was taking so long to save his iMovie project.  He was attempting to use the "Finalize" feature.  Diana explained that when attempting to share an iMovie project, the "Finalize" feature actually saves the project in 5 different formats so that it is ready to share in multiple sizes.  The video is rendered as mobile, medium, large, HD 720p, and HD 1080p. If a user only needs to share the video to one source, it is quicker to use the "Share" feature.  Here, the user can select the source and size they want, and the project will be prepared in this format only.