Can anyone shed light on the expected date rate(s) for MPEG4, too?  It's 
somewhat new to the QuickTime codec stable and there isn't a lot of 
information about what to expect or what the optimal settings range 
would be for multimedia or web streaming.

Ron


Colin Holgate wrote:

>> Sorenson is a low data rate codec. It performs best say between 
>> 5-130kb/sec.
>> Something playing back at 1.4MB is basically half full motion captured
>> video! Some of the best mpegs can playback at around 200kb/sec.
> 
> 
> 
> Just to qualify that a bit, normal MPEG1 is 150kbyte/sec (if it was 
> intended for single speed VCD), so 200kb/sec is better than average 
> MPEG1. MPEG2 on the other hand can be over 9megabits per second, but 
> usually is held back at 8 megabits per second (or lower if there's a lot 
> of time to fit nto the disc), which presumably is about 1 MByte/sec. 
> This would make the 1.4 MByte/sec Sorenson 40 percent higher data rate 
> than the best DVD's you'll ever see.


-------------------------------------------------
Ronald Woodland -- St. George, Utah  84770
-------------------------------------------------
"I long to accomplish a great and noble task, but
it is my chief duty to accomplish small tasks as
if they were great and noble."  -- Helen Keller

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