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 1Rc0fF-0001jS-Ct for garchives@archives.gentoo.org; Sat, 17 Dec 2011 20:15:25 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 048A121C1FD; Sat, 17 Dec 2011 20:15:11 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id DB41521C12D for ; Sat, 17 Dec 2011 20:14:13 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 3DC161B4001 for ; Sat, 17 Dec 2011 20:14:13 +0000 (UTC) X-Virus-Scanned: by amavisd-new using ClamAV at gentoo.org X-Spam-Flag: NO X-Spam-Score: -3.719 X-Spam-Level: X-Spam-Status: No, score=-3.719 tagged_above=-999 required=5.5 tests=[AWL=-0.490, BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FREEMAIL_FROM=0.001, NML_ADSP_CUSTOM_MED=0.9, RP_MATCHES_RCVD=-2.229, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001] autolearn=ham Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jgjS6f9b3zPM for ; Sat, 17 Dec 2011 20:14:04 +0000 (UTC) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by smtp.gentoo.org (Postfix) with ESMTP id 112171B4006 for ; Sat, 17 Dec 2011 20:14:01 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1Rc0do-00041u-Ta for gentoo-user@gentoo.org; Sat, 17 Dec 2011 21:13:56 +0100 Received: from dsl.comtrol.com ([64.122.56.22]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 17 Dec 2011 21:13:56 +0100 Received: from grant.b.edwards by dsl.comtrol.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 17 Dec 2011 21:13:56 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: Grant Edwards Subject: [gentoo-user] Re: DVD Movie backups Date: Sat, 17 Dec 2011 20:13:43 +0000 (UTC) Message-ID: References: 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 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: dsl.comtrol.com User-Agent: slrn/pre0.9.9-102 (Linux) X-Archives-Salt: 88067ee3-82a9-4f43-b5da-d02e35b8a3a4 X-Archives-Hash: 3e45b50bc8ff3be5028d27425e33ab70 On 2011-12-16, Mark Knecht wrote: > On Fri, Dec 16, 2011 at 11:03 AM, Grant Edwards> wrote: > >> Correct. If you use dd to copy an encrypted disk, the result will be >> missing something like 90% of the data. >> >>> I have no interest in tearing apart the DVD in any way. It was more >>> about the idea of a fire causing the loss of maybe $15K-$20K >>> investment over the years. I can rip all the CDs, keep the ripped >>> version here to watch on the computer, and store the DVDs elsewhere, >>> but that elimiates (generally) being able to watch special features >>> which my wife and kid enjoy. >> >> No it doesn't. You can use dvdbackup (or k9copy or ...) to copy the >> DVDs to the computer and when you play them back you get all the >> menus and special features and whatnot. If you want you can create >> ISO images and burn them to dual-layer-DVDs, but you don't need to do >> that to play them with all the features. > So for my continued education, if I take an encrypted movie I can use > program XYZ (Linux or Windows-based...) to create an iso image, but > that iso image won't, even if it does include all the special > features, ever be a bit-for-bit copy of the original. It's now > unencrypted and created anew. Exactly. I used to use k9copy, but I got tired of fighting with Qt dependancies and switched to dvdbackup. Sometimes I create ISOs and burn them to DVDs, but usually I just create directory trees and watch them via a SageTv set-top-box that mounts the directory via NFS. > It's a completely different way to represent the original data. Yep. I'm not aware of any Linux software that can create an encrypted 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. :) > That said, if it's a _complete_ representation of the original then > the special features are there, and if written to a DVD _might_ work > in my DVD player, They've always worked in the DVD players I've tried them in, including subtitles, special features, multiple audio tracks, etc. The various "backup" programs usually have options to pare down what's copied so that you can do things like copy only the main title with one audio track (with or without menus, subtitles, etc). Some of the backup programs will also re-encode the video to make the end result fit within a specified size -- for example you can generate a 4.7G ISO image from a 9GB original. > assuming the DVD player isn't specifically looking for something that > was on the original disc such as specifically encrypted blocks of > data, etc. > > Am I getting closer? Indeed you are. -- Grant Edwards grant.b.edwards Yow! How's it going in at those MODULAR LOVE UNITS?? gmail.com