my OS is ArchLinux running on an old ASUS laptop. Recently, I picked a DVD box-set from the store and later realized that they just won't play in my computer. Thinking that the DVD's were faulty I went back to the store and to my surprise they worked quite well when played on the stores dvd-player.I don't remember playing a DVD in the last few years but I did have a bunch of issues with region specific DVD's, this was quite a while back.Usually, DVDs' are automatically mounted by Nautilus. I tried mounting the device with mount:localhost% sudo mount -t iso9660 /dev/sr0 ~/cdrom mount: /dev/sr0 is write-protected, mounting read-onlymount: no medium found on /dev/sr0I think the problem might very well be hardware related but any pointers would be more than welcome.Output of the cd-drive command at paste-bin.Update #1:Here are the dvd* packages present in my OS:extra/libdvdcss 1.2.13-3 [installed]  Portable abstraction library for DVD decryptionextra/libdvdnav 4.2.0-2 [installed]  The library for xine-dvdnav plugin.extra/libdvdread 4.2.0-1 [installed]   Provides a simple foundation for reading DVD video disksOutput of the cd-info command:Disc mode is listed as: Error in getting information++ WARN: error in ioctl CDROMREADTOCHDR: No medium foundcd-info: Can't get first track number. I give upI should have checked the system logs. Here is what I found from journalctl when I tried playing the disc using vlc: -- Logs begin at Sun 2013-10-20 01:18:10 IST, end at Tue 2013-11-05 15:30:23 IST. --Nov 05 15:30:22 localhost gnome-session[1443]: libdvdnav: Using dvdnav version 4.2.0Nov 05 15:30:22 localhost gnome-session[1443]: libdvdread: Using libdvdcss version 1.2.13 for DVD accessNov 05 15:30:22 localhost gnome-session[1443]: libdvdread: Could not open /dev/sr0 with libdvdcss.Nov 05 15:30:22 localhost gnome-session[1443]: libdvdread: Can't open /dev/sr0 for readingNov 05 15:30:22 localhost gnome-session[1443]: libdvdnav: vm: failed to open/read the DVDNov 05 15:30:22 localhost gnome-session[1443]: libdvdread: Using libdvdcss version 1.2.13 for DVD accessNov 05 15:30:23 localhost gnome-session[1443]: libdvdread: Could not open /dev/sr0 with libdvdcss.Nov 05 15:30:23 localhost gnome-session[1443]: libdvdread: Can't open /dev/sr0 for readingNov 05 15:30:23 localhost gnome-session[1443]: [0x7f9848009158] dvdread demux     error: DVDRead cannot open source: /dev/sr0Nov 05 15:30:23 localhost gnome-session[1443]: [0x7f9858005b88] main input error: open of `dvd:///dev/sr0' failed
Can't mount DVD
dvd