~$ vlc
VLC media player 2.1.6 Rincewind (revision 2.1.6-0-gea01d28)
[0x99ec910] main libvlc: VLC wird mit dem Standard-Interface ausgeführt. Benutzen Sie 'cvlc', um VLC ohne Interface zu verwenden.
libdvdnav: Using dvdnav version 4.2.1
libdvdread: Encrypted DVD support unavailable.
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**                                            **
**  No css library available. See             **
**  /usr/share/doc/libdvdread4/README.css     **
**  for more information.                     **
**                                            **
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libdvdread: Could not open input: Kein Medium gefunden
libdvdread: Can't open /dev/sr0 for reading
libdvdnav: vm: failed to open/read the DVD
libdvdread: Encrypted DVD support unavailable.
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**                                            **
**  No css library available. See             **
**  /usr/share/doc/libdvdread4/README.css     **
**  for more information.                     **
**                                            **
************************************************
libdvdread: Could not open input: Kein Medium gefunden
libdvdread: Can't open /dev/sr0 for reading
[0xab3563c0] dvdread demux error: DVDRead cannot open source: /dev/sr0
[0x9a78d70] main input error: open of `dvd:///dev/sr0' failed