Well you need a CD RW. Burn the cd normally then run virtual cd.
Select create new virtual CD.
Then it just beofre the creation begins it ask for password if you wish to use. There you can select the password.
Then let it create the virtual cd
After that burn that virual cd file to the CD that's u like

When ever u want to use the CD just put the CD in the physical CD rom and mount the image file to the virtual drive and enjoy
It's simple

and secure
..:: Peace ::..
Jeba