I can't think of any other things that you could aply the streaming-thingie to...
Anyways, to give an answer to your other question:
The difference between event and streaming is just that event-media will only start playing when there fully loaded [_root.getBytesTotal()==_root.getBytesLoaded()
Streaming media don't need to be loaded fully and will start playing with a certain percentage loaded...
NOTE: My head isn't exactly exploding by information on streaming and event stuff, so this is all I can think of at the moment...sorry
Hope it helped a tiny bit
Maybe YOUR head WILL explode after you've tried the actionscript-dictionary
AND you might wanna give this thread