DVD playback problems

[Piers Kittel <debian@biased.org>]

Hello all,

I'm sure there is a simple solution to this problem but I'm not quite 
sure how to fix it.  Bascially, I can't play DVD's unless I'm running as 
root - i.e. mplayer only plays if I'm root, but xine refuses to play at all.

Someone suggested that my user wasn't part of the group cdrom and that 
the drive wasn't accessible to the group but:

hinata:/home/piers# addgroup piers cdrom
The user `piers' is already a member of `cdrom'.
hinata:/home/piers# ls -l /misc/cd
total 4
dr-xr-xr-x  1 root root 2048 2004-09-08 06:30 audio_ts
dr-xr-xr-x  1 root root 2048 2004-09-08 08:12 video_ts
hinata:/home/piers#
hinata:/home/piers# cd /misc/
hinata:/misc# ls -l
total 2
dr-xr-xr-x  1 root root 2048 2004-09-08 06:30 cd
hinata:/misc#

So the problem here seems to be that the directory is part of the 'root' 
group, not the 'cdrom' group.  If I unmount the DVD drive, the /misc/cd 
 directory vanishes.  So how do I make the DVD drive part of the cdrom 
group?  The fstab file contains the following line:

/dev/hdb /misc/cd udf,iso9660 ro,user,noauto 0 0

Am using Debian Sarge.

Thank you very much for your help in advance.

Regards - Piers