[Mp4-tech] MP4 Vs RealVideo 9

[bmitra]

I am new in this group.
I want to know the quality issues between MP4 decoder and RealVideo 9.
Because RealVideo 9 claims its twice better in quality for same bit rate as MPEG-4 video.
Is it true ? 
2. How the quality is measured in MPEG-4 for both audio & Video ? 
3. MP4 is international standard but RealVideo is proprietory. So which way a new developer should go ? 
Thanks,
B Mitra
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