libdvdread4 fails to retrieve CSS keys

[Teräslilja]

I have tried with two different sets of "Sapphire and Steel: The Complete Series (Repackaged) [2008] [DVD] [1979]".

I can play disk 1 very nicely (VLC), but disk 3 is *very* difficult for libdvdread. Disk 2 has problems only with title 6. Other disks not tested yet.

Log:
VLC media player 1.1.5 The Luggage (revision exported)
Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")
Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")
Blocked: call to setlocale(6, "")
Blocked: call to sigaction(17, 0x7fe856197b40, 0x7fe856197aa0)
Warning: call to signal(13, 0x1)
Warning: call to signal(13, 0x1)
Warning: call to srand(1294929745)
Warning: call to rand()
Blocked: call to setlocale(6, "")

(process:7210): Gtk-WARNING **: Locale not supported by C library.
 Using the fallback 'C' locale.
Warning: call to signal(13, 0x1)
Warning: call to signal(13, 0x1)
Blocked: call to setlocale(6, "")
Warning: call to rand()
Warning: call to rand()
Warning: call to rand()
Warning: call to rand()
[0x13dda40] qt4 interface warning: Input option: dvdnav-caching=300
libdvdnav: Using dvdnav version 4.1.3
libdvdread: Using libdvdcss version 1.2.10 for DVD access
libdvdnav: DVD Title: DVDVolume
libdvdnav: DVD Serial Number: cab73511
libdvdnav: DVD Title (Alternative): DVDVolume
libdvdnav: Unable to find map file '/home/XXXXX.dvdnav/DVDVolume.map'
libdvdnav: DVD disk reports itself with Region mask 0x00f50000. Regions: 2 4

libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000169
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00000652
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x00003320
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_1.VOB at 0x00003413
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_02_1.VOB (0x00003413)!!
libdvdread: Elapsed time 134
libdvdread: Get key for /VIDEO_TS/VTS_03_0.VOB at 0x0008ebeb
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_03_1.VOB at 0x0008ecde
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_04_0.VOB at 0x0011872f
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_04_1.VOB at 0x00118822
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_04_1.VOB (0x00118822)!!
libdvdread: Elapsed time 91
libdvdread: Get key for /VIDEO_TS/VTS_05_0.VOB at 0x001b2027
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_05_1.VOB at 0x001b211a
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_05_1.VOB (0x001b211a)!!
libdvdread: Elapsed time 78
libdvdread: Get key for /VIDEO_TS/VTS_06_0.VOB at 0x0023c71a
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_06_1.VOB at 0x0023c80d
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_06_1.VOB (0x0023c80d)!!
libdvdread: Elapsed time 98
libdvdread: Get key for /VIDEO_TS/VTS_07_0.VOB at 0x002ce060
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_07_1.VOB at 0x002ce0f6
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_07_1.VOB (0x002ce0f6)!!
libdvdread: Elapsed time 130
libdvdread: Get key for /VIDEO_TS/VTS_08_0.VOB at 0x003620c3
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_08_1.VOB at 0x00362159
libdvdread: Elapsed time 0
libdvdread: Found 8 VTS's
libdvdread: Elapsed time 531
Warning: call to srand(947891)

[Teräslilja (m-matti-a-lehtonen)]

Nothing wrong with DVDs itself, I managed to play disk 3 with another windows based DVD player.

[Teräslilja (m-matti-a-lehtonen)]

I managed to watch "Sapphire and Steel: The Complete Series (Repackaged) [2008] [DVD] [1979]" disk 3 with original setup, after I changed region code from 1 to 2.

libdvdread4 is not tested with region 2 DVDs?

[Onkar Shinde (onkarshinde)]

libdvdread is not responsible for reading/cracking encryption information (CSS) on DVDs. This task is handled by libdvdcss2 which is not hosted in Ubuntu repositories at all.

Apart from that newer DVD drives (those with RPC-2 firmware) may refuse to read the DVD if appropriate region match is not found. There is nothing libdvdcss2 can do in such cases.

[Bryce Harrington (bryce)]

Hi Teräslilja, from the comments it looks like this is not a bug in libdvdread but rather in libdvdcss. Bugs in that aren't tracked here in Ubuntu, so you should report the bug upstream. Here is a link to the upstream bug tracker, for your convenience:

  https://trac.videolan.org/vlc/

You'll need to register with that bug tracker in order to file bugs there.

Hope that helps. Since the bug isn't in software included in Ubuntu I'm going to close this bug report at this time. Good luck!