I/O error when mounting cdrom in Solaris 10

hi unix friends,

has anyone faced this problem before ? i inserted my cd into my X1450 machine, it says I/O error.

mount -F hsfs -o ro /dev/dsk/clt0d0s0 /cdrom

mount: I/O error

mount: cannot mount /dev/dsk/c1t0d0s0

what should i do ?

have you disabled the volfs before mounting the cdrom manually?

yes, i had stopped the vol manager manually

also you cannot mount the cdrom to /cdrom unless you remove the directory from the automounter config. try to mount it to /mnt.

Check the cdrom on another machine,
if bad: replace the media
if ok: clean the drive,
if still failing, replace the drive

By the way, an x1450 is an ATI RADEON graphic card.