I have a HD installation of Knoppix 3.7 and did apt-get of libdvdcss2 ..... here is xine comments when run from command line

rob@box:~$ xine
This is xine (X11 gui) - a free video player v0.99.1.
(c) 2000-2003 The xine Team.
libdvdnav: Using dvdnav version 1-rc7 from http://xine.sf.net
libdvdread: Using libdvdcss version 1.2.8 for DVD access
libdvdread: Could not open /dev/dvd with libdvdcss.
libdvdread: Can't open /dev/dvd for reading
libdvdnav: vm: faild to open/read the DVD
libdvdnav: Using dvdnav version 1-rc7 from http://xine.sf.net
libdvdread: Using libdvdcss version 1.2.8 for DVD access
libdvdread: Could not open /dev/dvd with libdvdcss.
libdvdread: Can't open /dev/dvd for reading
libdvdnav: vm: faild to open/read the DVD

my player is on /dev/hdb

input tab in XINE under device used for CD audio reads /dev/cdrom1

Thank you