[MPlayer-users] Why does a -dumpstream dump not play when mplayer can play the DVD directly fine?

[Andy Furniss]

Alex Bennee wrote:
> Hi,
>
> I'm having some problems ripping some of the DVDs in my collection.
> The DVD plays fine with a normal command line, e.g.:

>
> However if I rip the data for later encoding with:
>
> mplayer dvd://2 -dumpstream -dumpfile test.vob
>
> The resulting file is unplayable by mplayer. I get sound but no video
> and mplayer reports a lot of errors like:

The first thing to try if mplayer can't play a stream is to use -demuxer 
lavf. If you already are using it - try without.