[DVDnav-discuss] start_sector < last_sector check failed on Star Trek: Into Darkness

[Bryce Harrington]

On Tue, Nov 19, 2013 at 12:25:32AM +0100, Alexander Roalter wrote:
> On 19.11.2013 00:05, Bryce Harrington wrote:
> >STAR_TREK__INTO_DARKNESS generates this check failure:
> >
> >*** libdvdread: CHECK_VALUE failed in ifo_read.c:1676 ***
> >*** for c_adt->cell_adr_table[i].start_sector < c_adt->cell_adr_table[i].last_sector ***
> >
> >(repeats 11 times)
> >
> >dvdbackup reports similar errors, and also reports:
> >
> >Error reading VTS_15_0.VOB at block 1999
> >padding 49 blocks
> >Error reading VTS_15_0.VOB at block 3391
> >padding 193 blocks
> >
> >for VTS 07 to 15 (at which point I killed the process).
> >
> >I tested this on libdvdread version 4.2.0-1 from Ubuntu precise,
> >4.2.0+20130428 (from Debian), and the current 4.2.1 release candidate.
> >No difference in behavior.
> >
> >The check is this code:
> >
> >     CHECK_VALUE(c_adt->cell_adr_table[i].start_sector <
> >                 c_adt->cell_adr_table[i].last_sector);
> >
> >Simply commenting out the check doesn't result in proper behavior with
> >this disk, so I don't think it's merely an issue with the check itself.
> >
> >Examining the actual values being encountered, on the first iteration
> >(i=0), the start sector is 1343, with a last sector 0.
> >
> >Any other ideas of things to look at to figure out why this DVD is not
> >working with dvdread?
> >
> >Bryce
> 
> I guess it's the copy protection employed by Paramount. Had major
> problems playing Star Trek XI, too. dvdnav does the trick, it's
> title 13 on my (german) DVD (that came in the bundle with the BD -
> for which I lack the processing key or the VUK).

Ah, I don't actually care about having a copy of the movie (I've already
seen it), I am just using it for testing dvdread functionality.  Also,
might be other DVDs produced with similar oddnesses to them.

Bryce