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Old 2010-06-26, 04:56 AM
screen54 screen54 is offline
 
Join Date: Nov 2004
Non standard GOP length

Just wondering what people think.

More and more DVB-S broadcasts in Europe are showing up with a GOP length of more than 15. If a DVD is made from these video files without any alterations, the resulting disc will not be strictly PAL standard. TMPEG DVD Author will alter the GOP length to give a compliant DVD. IFOEdit will happily bump out a disc without these alterations.

Both play fine on most DVD players and in truth, I can't see any difference.

Is altering the GOP length considered re-encoding or is it just like resetting the header flags? Do we make compliant discs or not?

Thoughts and advice appreciated.

Cheers,
G.
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