Public bug reported:

Gnome-Mplayer & Mplayer fail to open commercial DVD movies (or tv
recordings) since Lubuntu Saucy or even perhaps 13.04 (not tested).  It
seems to look for them in /dev/dvd while the video is mounted in
/dev/sr0.

There is no /dev/dvd on my system.  This could be partly due to the RESUME 
which looks for /dev/dvd even when I start with the command:
gnome-mplayer /dev/sr0

Before the RESUME popup, things appear to be normal:
gnome-mplayer /dev/sr0
GMLIB-Message: after init: position=0.000 length=0.000 start_time=0.000 
run_time=0.000 volume=0.00 player=dead media=unknown uri=
GMLIB-Message: /dev/sda5 is at /
GMLIB-Message: proc is at /proc
GMLIB-Message: sysfs is at /sys
GMLIB-Message: none is at /sys/fs/cgroup
GMLIB-Message: none is at /sys/fs/fuse/connections
GMLIB-Message: none is at /sys/kernel/debug
GMLIB-Message: none is at /sys/kernel/security
GMLIB-Message: udev is at /dev
GMLIB-Message: devpts is at /dev/pts
GMLIB-Message: tmpfs is at /run
GMLIB-Message: none is at /run/lock
GMLIB-Message: none is at /run/shm
GMLIB-Message: none is at /run/user
GMLIB-Message: none is at /sys/fs/pstore
GMLIB-Message: binfmt_misc is at /proc/sys/fs/binfmt_misc
GMLIB-Message: systemd is at /sys/fs/cgroup/systemd
GMLIB-Message: gvfsd-fuse is at /run/user/1000/gvfs
GMLIB-Message: /dev/sr0 is at /media/myusername/DVDVIDEO
GMLIB-Message: /dev/sr0 is mounted on /media/myusername/DVDVIDEO

After I answer Yes or No to the popup, I get this and a new popup telling me it 
cannot find /dev/dvd
GMLIB-Message: in media state change with state = unknown dontplaynext = 0

If run: gnome-mplayer /dev/dvd,  I get the following message:

gnome-mplayer /dev/dvd
GMLIB-Message: after init: position=0.000 length=0.000 start_time=0.000 
run_time=0.000 volume=0.00 player=dead media=unknown uri=
GMLIB-Message: in media state change with state = unknown dontplaynext = 0

If I run the command that worked in earlier versions: mplayer -mouse-movements 
dvdnav://
I get this output:
mplayer -mouse-movements dvdnav://
MPlayer svn r34540 (Ubuntu), built with gcc-4.7 (C) 2000-2012 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing dvdnav://.
libdvdnav: Using dvdnav version 4.2.0
libdvdread: Using libdvdcss version 1.2.13 for DVD access
libdvdread: Can't stat /dev/dvd
No such file or directory
libdvdread: Could not open /dev/dvd
libdvdnav: vm: failed to open/read the DVD
Couldn't open DVD device: /dev/dvd (No such file or directory)
No stream found to handle url dvdnav://

Exiting... (End of file)

As a TEMPORARY fix, I added to /etc/rc.local:
ln -s /dev/sr0 /dev/dvd
exit 0

This adds a /dev/dvd link to /dev/sr0 each time I reboot partially fixes
the problem but does not fix the bug that everyone else will run into.
With this Gnome-Mplayer works normally.  Mplayer will play the video but
the text of the menu stays on screen while the video plays (i.e. does
not really works).

FURTHER TESTING WITH VLC (without the ln -s /dev/sr0 /dev/dvd above)
VLC run normally with the following commands:
vlc /dev/sr0
vlc /dev/cdrom

but has the 'cannot find /dev/dvd error with:
vlc /dev/dvd

vlc dvdnav://  does not work either and produces the following output:
VLC media player 2.0.8 Twoflower (revision 2.0.8a-0-g68cf50b)
[0x9c41908] main libvlc: Running vlc with the default interface. Use 'cvlc' to 
use vlc without interface.
libdvdnav: Using dvdnav version 4.2.0
libdvdread: Using libdvdcss version 1.2.13 for DVD access
libdvdread: Can't stat /dev/dvd
No such file or directory
libdvdread: Could not open /dev/dvd
libdvdnav: vm: failed to open/read the DVD
[0xb5200618] main input error: open of `dvdnav://' failed


NOTE: I have had the same problem on a clean install of Lubuntu 13.10 on a 
separate partition on the same PC.

This is a major issue.  Not being able to play DVDs is just not acceptable to 
most people.  It is harming Ubuntu's reputation.
I hope this can be fixed asap and prior to the next version.

Thanks.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: gnome-mplayer 1.0.8-2
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic i686
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: i386
Date: Tue Nov  5 08:46:44 2013
InstallationDate: Installed on 2011-11-15 (720 days ago)
InstallationMedia: Lubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MarkForUpload: True
SourcePackage: gnome-mplayer
UpgradeStatus: Upgraded to saucy on 2013-10-19 (16 days ago)

** Affects: gnome-mplayer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 saucy

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https://bugs.launchpad.net/bugs/1248194

Title:
  Gnome-Mplayer cannot play commercial videos: Couldn't open DVD device:
  /dev/dvd (No such file or directory) -- Ubuntu Saucy

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