How animated graphics differ from movie clip symbols

Maybe this should be obvious, but I still thought it worth recording. I was reading about the differences in Flash between a movieclip symbol and an animated graphic symbol. A nice description of the differences is provided at conceptualdesign.net:

“Flash has two kinds of animated symbols: graphic symbols and movie clips. The difference is subtle and could be a tad bit confusing. An animated graphic symbol is tied to the main timeline of any movie that you place it in; whereas a movie clip symbol runs on its own independent timeline. (Note: Macromedia confirms this, too.)

You can think of animated graphic symbols as being a slide show. Each frame of the symbol is a separate slide. When you move to the next frame in the animated graphic symbol, you must move to another frame in the main timeline/hosting movie's timeline. Also, there is no sound track. Even if you have sounds or interactivity functions in a movie, when you convert it into a graphic symbol you loose those features, (If you have a stop action in the last frame of an animated graphic symbol and you place it in a movie, that stop action will not work).

A movie clip symbol is like a film loop. You can project all its frames one after another, over and over, in a single frame of the main timeline/the hosting movie. Movie clips do have a sound track and do retain their interactivity.”