[stavrosg@gondolin ~]$ mplayer dvd://1
MPlayer 1.0pre6-3.4.3 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6, Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.

Failed to open /dev/rtc: Άρνηση πρόσβασης (it should be readable by the user.)
Playing dvd://1.
libdvdread: Could not open device with libdvdcss.
libdvdread: Can't open /dev/dvd for reading
Couldn't open DVD device: /dev/dvd


Exiting... (End of file)
[stavrosg@gondolin ~]$