My CD ROM is locked only for one CD. When I access it I receive the message, unable to enter file:/mnt/cdrom. Here is what I have tried:

1 - Logged on as su and try to remount

$ su -
Password: admin password
supermount i-disable
mount /mnt/floppy
mount /mnt/cdrom

This did not work. Any other installation CDs I put in works fine, and this same CD can be viewed in MS Windows with no problems. There is something about this particular CD

Any other solutions?? Thanks.