From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Rc4k7-000269-Rd for garchives@archives.gentoo.org; Sun, 18 Dec 2011 00:36:44 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E80E521C048; Sun, 18 Dec 2011 00:36:29 +0000 (UTC) Received: from mail-ww0-f53.google.com (mail-ww0-f53.google.com [74.125.82.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 951D021C040 for ; Sun, 18 Dec 2011 00:35:27 +0000 (UTC) Received: by wgbds1 with SMTP id ds1so7798425wgb.10 for ; Sat, 17 Dec 2011 16:35:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=pIupRgI73NOF2cOcLd4Sn7wrK68hI6EqxBARiAF3G6U=; b=dBrjuxNw15Ut5QAhbDW2V5X1UsQhlgp6899aAQedPKwmuOrV+mAbSO3/hJ8WBmirf4 NfuBfXeeM0hyzIsDqj7QR5Z8tkGm47DrRZ9eZud2XDRLVo9uZAo8W1nP542wC3OhINnO bv+IQYa7N4g6KEZ4DZM9VfJv229G/vfC4Utt8= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.180.89.5 with SMTP id bk5mr19101635wib.60.1324168526710; Sat, 17 Dec 2011 16:35:26 -0800 (PST) Received: by 10.223.160.73 with HTTP; Sat, 17 Dec 2011 16:35:26 -0800 (PST) In-Reply-To: <20111217230341.1c9357ca@digimed.co.uk> References: <20111217230341.1c9357ca@digimed.co.uk> Date: Sat, 17 Dec 2011 16:35:26 -0800 Message-ID: Subject: Re: [gentoo-user] Re: DVD Movie backups From: Mark Knecht To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 7302f195-2d7a-47bf-bbbc-817934c40279 X-Archives-Hash: 1477bc55dcb04d4551290ba7caea6760 On Sat, Dec 17, 2011 at 3:03 PM, Neil Bothwick wrote: > On Sat, 17 Dec 2011 20:13:43 +0000 (UTC), Grant Edwards wrote: > >> Yep. =C2=A0I'm not aware of any Linux software that can create an encryp= ted >> DVD -- but I've never had a desire to do that, so my lack of knowlege >> of such a thing shouldn't be used as an indication of non-existence of >> such a thing. :) > > You also don't have the hardware to create them. CSS keys are stored on a > separate area of the disc, an area that is not available on DVD-Rs, > which is why yo cannot copy a CSS-encrypted DVD with dd, it copies the > encrypted data but not the decryption keys. > > > -- > Neil Bothwick Interesting but still a little confusing. My DVD-RW drive can apparently _read_ the CSS keys because xine can play the DVD. I'm assuming here that the Linux DVD libraries need the keys but maybe they don't actually even need them to play a DVD if the encryption can be broken without the keys. I guess you are saying that either the CSS keys are completely unnecessary, or that the DVD-RW drive can read but not write to the area where they are stored? Thanks, Mark