[MPlayer-users] DVDNAV fails sometimes?

[Roger Pack]

> Hello all.
> I notice that with some DVD's mplayer fails to play the DVD (example,
> Snow White--I'd be happy to send anybody a legal copy if it would help
> with debugging).
>
> http://betterlogic.com/roger/2011/07/mplayer-woe
>
> However, if I then play the thing in VLC (once), then go back to
> mplayer, suddenly it plays fine, and from then on.  Anybody have any
> ideas what might be happening here?  This is in windows, but I think
> I've seen it in OS X before, as well.

My hunch is this was caused by an old version of libdvdcss