[Mplayer-advusers] mencoder crash/fail with some DVDs/VOBs

[Julian Mayer]

> This looks like interlaced video.  I think 3 pass encoding does not
> work with these.  If that's the problem you are facing, just rm
> frameno.avi and do -oac mp3lame during all passes and it should be ok.
>
> Kim Minh.
>
thanks, that seemed to do it!
maybe mencoder should print out a warning instead of silently failing 
or crashing?

how can i detect if the video on DVD or VOB is interlaced, so an 
automated script could automatically retain to 2-pass mode?

thanks, julian