Does anyone know if it is even possible to password protect CD's so that people cannot access the files and such on them unless they have the password.

I couldn't locate any software doing a google search or AO search. I did find one possible solution of encrypting the files using PGP and burning the encrpted version and than send it off and have someone unencrypt it there. However if possibly I'm looking for a easier way.

Any ideas would be appreciated.