[DVDnav-discuss] Can't watch DVD: `libdvdread: Invalid IFO for title 2 (VTS_02_0.BU)`

[Paul Menzel]

Dear Jan,


Am Freitag, den 24.05.2013, 14:09 +0200 schrieb jan.maske at abwesend.de:

> I bought a new DVD, but can't watch it.

which one?

> Using libdvdread 4.2.0 lsdvd eats a lot of memory and gives the
> following messages:
> 
> $ lsdvd
> libdvdread: Using libdvdcss version 1.2.13 for DVD access
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1251 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1980 ***
> *** for pgci_ut->nr_of_lus < 100 ***
> 
> Please send bug report - no VTS_TMAPT ?? 
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1251 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1980 ***
> *** for pgci_ut->nr_of_lus < 100 ***
> 
> Please send bug report - no VTS_TMAPT ?? 
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1251 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> 
> 
> With a more recent version from git it doesn't use that much 
> memory and outputs just:

Which repository did you use as libdvdread is in Subversion as far as I
know.

> $ lsdvd
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1246 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1246 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> libdvdread: Invalid IFO for title 2 (VTS_02_0.BU).
> Can't open ifo 2!

Building `libdvdread` with debugging symbols and attach to it with GDB
and printing out the actual values (and trying to override them), might
be worth a shot.

> And mplayer produces:
> Playing dvd://2.
> There are 99 titles on this DVD.
> There are 1 angles in this DVD title.
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1246 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> 
> *** libdvdread: CHECK_VALUE failed in ifo_read.c:1246 ***
> *** for vts_ptt_srpt->title[i].ptt[j].pgn != 0 ***
> 
> libdvdread: Invalid IFO for title 2 (VTS_02_0.BU).
> 
> Cannot open the IFO file for DVD title 2.
> No stream found to handle url dvd://2
> 
> I tried it on different computers, so it is not a hardware problem. 
> Only one Window Media Player could actually play it. Any help would
> be appreciated.

I have to run, so just my first stab by asking: “Might this be related
to the Lauchpad bug report [1]?”.


Thanks,

Paul


[1] https://bugs.launchpad.net/ubuntu/+source/libdvdnav/+bug/1094499
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