Warp wrote:

>   Creating an MPEG2 stream is far from an unambiguous process. Some programs
> do a much better job than other programs ever could, no matter how much you
> fine-tune their settings.

When last I looked, encoding to MPEG1 basically involves taking the DCT 
of each frame, in the style of JPEG. There's also some fun with 
different frame types. It looked to me like there's basically only one 
possible bitstream you can produce. (Well, no, you can fiddle with the 
quantinisation matrix, and if you're doing variable bitrate there are 
some possibilities.)

I'm not actually sure how MPEG2 differs from MPEG1. I know they added 
some more features, but I don't know specifically what.

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