Can't play DVD

What are you trying to install?

What is the output of:

lsb_release -a; uname -a

Thanks

 I copied the 'linux' and 'ldoce5.data' since I couldn't find libgtk1.2 in synaptic.

madhu@madhu-desktop:~$ lsb_release -a; uname -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial
Linux madhu-desktop 4.4.0-57-generic #78-Ubuntu SMP Fri Dec 9 23:46:51 UTC 2016 i686 i686 i686 GNU/Linux
madhu@madhu-desktop:~$

I'd suggest you install in the terminal. If you run:

sudo mount -o remount,exec /dev/sr0

The you can use the terminal to navigate into the DVD mount point and run the installer.

Output

madhu@madhu-desktop:~$ sudo mount -o remount,exec /dev/sr0
[sudo] password for madhu:
madhu@madhu-desktop:~$

Great now the files are executable and you can run the installer in the terminal

Would you please tell me it briefly?

When I tried VLC it says:

Your input can't be opened:
VLC is unable to open the MRL 'dvd:///dev/sr0'. Check the log for details.

What do you want to do?
Install software from a DVD or play media (music, videos) from a DVD?

Just want to play the media from a DVD.

This is an English Vocabulary Trainer (DVD)

Linux LinEx 2004, 2006; Ubuntu (5.10) ....etc are printed on it. But this is a new CD (Year 2016)

What is the output of:

mount

Thanks

madhu@madhu-desktop:~$ mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=1007928k,nr_inodes=210664,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=205164k,mode=755)
/dev/sda1 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=33,pgrp=1,timeout=0,minproto=5,maxproto=5,direct)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=205164k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
/dev/sr0 on /media/madhu/LDOCE5 type iso9660 (ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500,uhelper=udisks2)
madhu@madhu-desktop:~$

Actually I had tried to right click on some folders and verified the permission and gave permission. But that didn't work. I couldn't play such a DVD in my life using Ubuntu. But I could play an ordinary DVD CD using VLC or SMPlayer.

You have to differentiate between playing music from a CD/DVD with media players like VLC, and installing and/or using software from a data disc.

A DVD is a read-only medium. You cannot change permissions on it.
You only have the possibilities to
1. copy the files (in this case 'linux' and 'ldoce5.data' folders) to the hard disk and set the required permissions there or
2. mount the DVD in a way that all files are executable (as already recommended by actionparsnip).

What is the output of
ls -l /media/madhu/LDOCE5

Thanks for the explanation.

madhu@madhu-desktop:~$ ls -l /media/madhu/LDOCE5
total 657751
-r--r--r-- 1 madhu madhu 49248 Jun 17 2009 autorun.exe
-r--r--r-- 1 madhu madhu 42 Jun 17 2009 autorun.inf
-r--r--r-- 1 madhu madhu 50500 Jun 17 2009 AWLPhonetics3U.TTF
dr-xr-xr-x 3 madhu madhu 2048 Jul 11 2008 ldoce5.app
dr-xr-xr-x 25 madhu madhu 4096 Jun 17 2009 ldoce5.data
-r-xr-xr-x 1 madhu madhu 5557056 Jun 17 2009 ldoce5.exe
dr-xr-xr-x 3 madhu madhu 2048 Jun 17 2009 linux
-r--r--r-- 1 madhu madhu 1140 Jun 17 2009 LINUX_README.txt
-r--r--r-- 1 madhu madhu 334 Jun 17 2009 MAC_README.txt
dr-xr-xr-x 2 madhu madhu 2048 Jun 17 2009 QUICKfind
dr-xr-xr-x 45 madhu madhu 6144 Jun 17 2009 rr_moved
-r--r--r-- 1 madhu madhu 667859754 Jun 17 2009 setup.exe
madhu@madhu-desktop:~$

Does the command

bash /media/madhu/LDOCE5/linux/setup.sh

work?

 Got a file on the Desktop

Appeared with a warning sign when I tried to open it:

The application launcher “ldoce5.desktop” has not been marked as trusted. If you do not know the source of this file, launching it may be unsafe.

I Don't know anything about it. Don't know the application to open with.

"I Don't know anything about it"

This is the application that you just installed. Why did you install it if you did not know what it is about?

It is a gift I got along with a Yearbook of a reliable source. (Yearbook is reliable.Not about the CD) Now I don't wish to use it if it is unsafe. There was no information about its safety. If so is there a shortcut to uninstall it?

To open it I must right-click and give permission to execute it, isn't it? I am waiting for a reply to #20

The warning "The application ... has not been marked as trusted. If you do not know the source of this file, launching it may be unsafe." is a standard message displayed for everything that does not come from the Ubuntu repositories.
If you trust the provider of the DVD, then you can start the application without further doubts.

I do not know anything about that software, so I do not have any knowledge how to uninstall it.
Is there some kind of uninstall.sh on the DVD, or anything in one of the README files?

I didn't give permission (as given in #22). So I couldn't open it. Is it the right way to do that? Couldn't see any uninstall.sh. in the folders. Searched for LDOCE5 in Synaptic, but didn't see it there.

Please read #24 also.

Now I could find a file (uninstall)

First few lines ............

#! /bin/sh
#### UNINSTALL SCRIPT - Generated by SetupDB 1.6 #####
DetectARCH()
{
        status=1
        case `uname -m` in
           amd64 | x86_64) echo "amd64"
                  status=0;;
           i?86 | i86*) echo "x86"
                  status=0;;
           90*/*)
     echo "hppa"
     status=0;;

Thanks Manfred Hampl, that solved my question.

What is the command for uninstalling this app? Full details as follows..........

#! /bin/sh
#### UNINSTALL SCRIPT - Generated by SetupDB 1.6 #####
DetectARCH()
{
        status=1
        case `uname -m` in
           amd64 | x86_64) echo "amd64"
                  status=0;;
           i?86 | i86*) echo "x86"
                  status=0;;
           90*/*)
     echo "hppa"
     status=0;;
     *)
  case `uname -s` in
      IRIX*)
   echo "mips"
   status=0;;
           AIX*)
           echo "ppc"
           status=0;;
      *)
   arch=`uname -p 2>/dev/null || uname -m`
                       if test "$arch" = powerpc; then
                          echo "ppc"
                       else
                          echo $arch
                       fi
   status=0;;
  esac
        esac
        return $status
}

DetectOS()
{
  os=`uname -s`
  if test "$os" = OpenUNIX; then
     echo SCO_SV
  else
     echo $os
  fi
  return 0
}

if which loki-uninstall 2> /dev/null > /dev/null || type -p loki-uninstall 2> /dev/null > /dev/null; then
    UNINSTALL=loki-uninstall
else
    UNINSTALL="$HOME/.loki/installed/bin/`DetectOS`/`DetectARCH`/uninstall"
    if test ! -x "$UNINSTALL" ; then
        echo Could not find a usable uninstall program. Aborting.
        exit 1
    fi
fi
"$UNINSTALL" -L ldoce5 "/home/madhu/ldoce5/.manifest/ldoce5.xml" "$1"

sudo apt-get --purge remove ldoces5

didn't work

#17 solved the problem. Now I have removed it by moving the 2 folders from home and desktop into Trash. Thanks Manfred Hampl and actionparsnip.