i think you're a little confused.
a bootable cd means you restart the computer with the cd in, and the computer boots from whatever is on the cd (ie a hard disk image, windows boot disk, whatever...)
it sounds to me like you're just looking to automatically open the folder?
on the surface it seems that what you're looking for is autorun, but autorunning usually launches a specific program from the cd upon insertion...not just open the folder.
you could use window's auto insert notification feature set to "open folder" and the check box checked under "perform this option every time" but it's not really recommended in case you come across dvds or cds with nasty programs that autoinstall (rootkits and whatnot)
autoplay is similar to what you're looking for, but like i said, as far as i know you can't get it to just open a folder...it will run a selected file though