Can't mount DVD any more

[Tong <mlist4suntong@yahoo.com>]

Hi, 

I used to be able to mount my dvd, but not now any more.

Here is my fstab:

$ grep dvd /etc/fstab 
/dev/dvd                /mnt/dvd                auto   noauto,user

When I mount explicitly, I get:

% mount -t iso9660 /dev/dvd /mnt/dvd/ 
mount: wrong fs type, bad option, bad superblock on /dev/dvd,
       or too many mounted file systems
       (could this be the IDE device where you in fact use
       ide-scsi so that sr0 or sda or so is needed?)

% mount -t iso9660 /dev/sr0 /mnt/dvd/ 
mount: block device /dev/sr0 is write-protected, mounting read-only
mount: No medium found

What I can do? 

Here is my kernel modules:

$ lsmod | grep -Ei 'scsi|cd|dvd|ide'
ide-scsi                8464   0  (autoclean)
scsi_mod               85312   4  (autoclean) [sr_mod sg sd_mod ide-scsi]
ide-cd                 27936   0 
cdrom                  25056   0  [sr_mod ide-cd]
ide-detect               288   0  (autoclean) (unused)
ide-disk               12512  12  (autoclean)
ide-core               94108  12  (autoclean) [ide-scsi ide-cd ide-detect sis5513 ide-disk]

Thanks

tong