I answered your question back on post #18 "This moves them quickly and cleanly without trans-reencoding." and sort of again in #24.
You are reaching:
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					Originally Posted by cody  Dean just took the term "container" a little too literally.  A better analogy would be, "If changing Dean's name to Jean makes him a woman, then yes, just change the extension.   " | 
	
 And they are literally digital containers for media streams... That is the correct technical term for a reason. The Ziplock analogy was extremely accurate for your change extension theory. It was a bit sarcastic, but accurate. Why would I give you an application if you could just batch change file extensions???