mount acting up

[789]

Not VL, but general Linux question about mounting CDs

Up until a few hours ago (when I noticed), as user I could mount CDs whenever I loaded one;  could burn CDs, too.  Suddenly, out of nowhere, I don't know why, the ghost in the machine tells me "must be superuser to use mount".  Where did this come from ? I certainly did not change anything.
My fstab has not changed:

Code:

/dev/hdc  /mnt/lite-on  iso9660  noauto,user,ro,exec  0 0
/dev/hdd /mnt/hp iso9660 ro,user,noauto,exec 0 0

mount is owned by user, rwx; I am member of tty,wheel,audio,video,cdrom,plugdev;  /mnt/hp is owned by user

How could I change things back to the way it was (without re-installing) ?  Where do I set the permissions to mount ?

[789]

Thanks to a hint on linuxQuestions.org I found the answer to my question. The problem was that my mount's properties were k7,users -rwxr-xr-x, as opposed to root,bin -rwsr-xr-x.
But still would like to know what made this change behind my back.  (I suspect a certain live CD.)