cd-burning with password???

hey techis!
i have a problem here and i hope someone here in the house could help me.

is there any way to burn cd-s with a passwordprotection?

i am not talkin about backups with retrospect or kinda stuff.

i am often sending cds from my office to outher offices with conf. material – so if the cd gets loose we are not interested in that everybody could open it.

so is there a solution to protect a burnd cd with password like i could do with zip, or harddrives???