[DVDnav-discuss] Problem with DVD

[Cédric Macquat]

On Thu, Jul 26, 2012 at 01:20:06PM -0600, Roger Pack wrote:
> 
> It's odd that vlc with "no disc menu" plays it, since that does *not*
> use dvdnav, whereas apparently mplayer *with* dvdnav does?

I have to give a the title 15 or above. If I give 8 for example it also
crash.

> what about mplayer dvdnav://<<main_title_number> does that work?

How can I get the main title number ? 

> Backtraces might be useful.

Could you tell me how can I get backtraces ?