On Thu, 6 Apr 2006, Nicolas wrote:

> Thanks for the help. I'm not re-running my Cinelerra rendering batch.

        Oh, I thought perhaps you were rendering to an intermediate file
        so you could re-run the encoding step without having to re-render
        everything.

> The problem did not occur on all videos, but only on some of them wher
> there was a lot of details and motion. Your advice to lower the video

        Right - that's what I thought was the situation.  You're pushing
        so hard up against the limits there's no tolerance for the inevitable
        peaks that might exceed the limits.

> On the other hand, I know modern standalone DVD players can play DVD
> whose bitrate is far larger than the official recommandation. I did not

        Some players can.  Many can not.

> try myself, but I'll encode at 15mbps just to check it can be read.

        I'd be very surprised if that played in most players.  A computer
        DVD-ROM drive would handle it but  standlone DVD players have such
        low profit margins that a cheap "meet the official specs only" 1X
        drive is more common than a sturdier/faster (DVD-ROM) drive.

> BTW, there's an interesting feature on my standalone player. It can

        I saw one player with that feature a couple years ago but since 
        then I have not been able to find that capability in the current
        selection of players.

> display the bitrate using a bargraph. Is there any program on Linux
> which could do the same? (my home is a Windows-free environnement).

        Not while playing the DVD but there is some gooed MPEG analysis
        software available for analyzing the .m2v and VOB files (basically if
        it's MPEG-1 or -2 it will analyze it).   No windows either - in fact
        it is not available for windows (which is why I have a copy ;)):

        http://www.digigami.com/mpressionist/index.php

        But start at  http://www.digigami.com and look around - I'm working
        an issue with the author now, but overall it's a valuable tool for
        looking at MPEG files

        Cheers,
        Steven Schultz



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