>What you want is aespipe. Look at http://loop-aes.sourceforge.net/ and get http://loop-aes.sourceforge.net/aespipe/aespipe-v2.3a.tar.bz2 Its readme has an example how to make encrypted ISO Images. From my own experience I can assure you that loop-aes can mount and read such encrypted images even if they are made on 4,4GB DVD under Nero. In case you would install loop-aes plus aespipe it might be possible to append proper settings to the example especially for DVD images. << I have read the readme. it sounds all right, although I do not get, why and how I have to "create 65 random encryption keys and encrypt those keys using gpg". Up to now, I never needed a keyfile, just the password-sentence, so I'm a bit lost on how and why this is done. My concern about usinf loop-aes is, that it may change my current settings for cryptoloop, losetup,...etc. Will it change these? If so, I might not be able to use my old archives any longer, if the new cryptoloop/losetup modules are not compatible... Actually I wanted a twofish-encryption, since I read, that AES is not really the best anymore and has weaknesses, but I guess before it won't work at all (or just by using large container files). Oh yes - what exactly is the difference between an image-file made with aespipe and one made with losetup? The real question beeing - what is the advantage of this. to me it seems like aespipe is making basically the same as losetup, so the ISO-image is looking similar. Although I see the difference in filesystem. I used ext2 and the readme uses mkisofs. May that be the key to success? Ciao - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/