Re: Chapter marks not where specified.

> 
> > Dvdauthor places its chapter marks, in every case, at the I-frame
> > immediately preceding the specified time.
> 
> Chapter marks (in fact, cell boundaries) have to go at I-frames, because
> those are the only points that a player can randomly seek to without
> showing gaps in the video. The other kinds of video frames—P-frames and
> B-frames—cannot be decoded without reference to neighbouring I-frames.

I think I already knew that, which is why I mentioned that the mpeg has 
I-frames at *exactly* the times I specified for the chapter marks.

> 
> > This does not seem to me to accord with the documentation.
> 
> I guess the DVDAuthor documentation cannot explain all the ins and outs
> of the DVD-Video format. That’s why I started this WikiBook

It explained them perfectly well, in this case.  The problem is that the 
version I have, 0.6.18, does not do what it says on the tin.

Tom Brock.

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