From the developer: "CD-Lock provides excellent CD security by encrypting your files with Blowfish and scrambling the filenames. But unlike normal encrypted files, with CD-Lock you don't have to decrypt the files before you use them. Just enter your password when the CD is inserted and CD-Lock automatically unscrambles the filenames and decrypts the files, instantly behind the scenes, as you use them. Security only encryption can provide.... without the hassle!"