Hardy: only root can play DVDs

[Avi Schwartz]

Something happened today, I am not sure what, and now only root can
playback DVD movies on my laptop.  This is true with every program I
tried.  If I try to play a DVD back as a regular user with xine
--verbose dvd://1 I see the following error:

---------------------- (ERROR) ----------------------
The source seems encrypted, and can't be read.
Your DVD is probably crypted. According to your country laws, you can or
can't install/use libdvdcss to be able to read this disc, which you
bought. (Media stream scrambled/encrypted)
------------------ (END OF ERROR) -------------------

This is strange since (1) libdvdcss2 is installed and (2) root can
playback properly.

More information:

$ mount
/dev/scd0 on /media/cdrom0 type udf (ro,nosuid,nodev,utf8,user=avi)

$ ls -l /dev/scd0
brw-rw----+ 1 root cdrom 11, 0 2008-04-13 22:06 /dev/scd0

$ ls -ld /media/cdrom*   (when DVD is present)
lrwxrwxrwx 1 root       root         6 2006-12-22 18:42 /media/cdrom ->
cdrom0
dr-xr-xr-x 3 4294967295 4294967295 88 2002-10-08 13:39 /media/cdrom0

$ ls -ld /media/cdrom*   (when no DVD is present)
lrwxrwxrwx 1 root root    6 2006-12-22 18:42 /media/cdrom -> cdrom0
drwxr-xr-x 2 root root 4096 2006-12-22 18:42 /media/cdrom0

$ groups
avi adm dialout cdrom floppy audio dip video plugdev fuse lpadmin admin

$ ls -l /usr/lib/libdvdcss*
lrwxrwxrwx 1 root root    18 2008-04-13 21:51 /usr/lib/libdvdcss.so.2 ->
libdvdcss.so.2.0.8
-rw-r--r-- 1 root root 31512 2007-09-27 13:23 /usr/lib/libdvdcss.so.2.0.8