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Posted by Jeff Lindstrom on 07/16/06 19:34
Summercoolness@gmail.com wrote:
> I always wonder if Mpeg1 at 352 x 240 is quite clear with 600MB and is
> for 1 hour of video, then for Mpeg2, the size quadruple, and it is 2GB
> for an hour... so the improvement from Mpeg1 to Mpeg2 isn't so big as
> from Mpeg2 to Mpeg4? It seems that for Mpeg4, only 500MB is needed
> for 1 hour of 640 x 480 video.
MPEG2 was designed to provide better quality than MPEG1.
MPEG4 was designed to take up less space, making it more suitable for
portable devices (my digital camera records in MPEG4). It was not designed
to provide better quality than MPEG2.
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