From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 1EECD138334 for ; Mon, 3 Dec 2018 22:50:24 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 62AE5E0A52; Mon, 3 Dec 2018 22:50:15 +0000 (UTC) Received: from mail-yw1-xc44.google.com (mail-yw1-xc44.google.com [IPv6:2607:f8b0:4864:20::c44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id D99C3E09C4 for ; Mon, 3 Dec 2018 22:50:14 +0000 (UTC) Received: by mail-yw1-xc44.google.com with SMTP id l200so6121071ywe.10 for ; Mon, 03 Dec 2018 14:50:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:openpgp:autocrypt:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=5J4wo8nPjmvFv3qebbOU2YdAKSgesthIoxxR1ve1z1Q=; b=nAcK4bBOtIuV5Zg4M0SB8CcHY0nku3BYBmzKdD9Ow3Ykq5A5bbW1Dju6AxAaO7zdui boghMlBzL+SXLx+BAhtXVg/TWjl+rM/ToEMWKvEyVqGMfyAxtPSB65tvDcpX/rt914yz SY+yXkTjCR/qqubqiNiwJxmG4aRjg4eSFtQZ1RDf+s6LL2V+RnXVxj4aCOHZMj7okicB Tb8fJYhDvrW5yUcRNwmknVrRY9BaC+ummCUq+b7LeGogwpbsYjSw4t2TF4YhNmF/Fatr k/aGa9fHnIk9LsjcCbS2I1x4iknn0TqmZFHaS9SbYNkGeWbrAw14PZAW0iTNaJxq7c7N P8Cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:openpgp:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-transfer-encoding; bh=5J4wo8nPjmvFv3qebbOU2YdAKSgesthIoxxR1ve1z1Q=; b=PEoAJrCygSmALx5YwjK875klMM7v5Rl9s/AB0tQ0gVZcQDzVxnH3IRfXpna6WcLMg2 MEEEPAu9gbXfF+1nj+CgDp2VqlT/yfVXPOvPaXDVNQFaSgaIIXY8mtuM3xcHlJ5XHW7m TKkVHFN3CvzpGKvhs4dwY6u9aGY+E8UDil5GbF3Gz+uVzNuUH33Y5HywclkEklUBnaUJ scWCUHwg/vcwuGb3oO+tqxQD2aXyJ4Sevyv3Mrmtl283zEpTxpfiDcxa17KAwiGsDYHn a5MC7cz6QweSrp7gQRUY9N0Z1rvtI+IYxlSv/4tKIyhiA8BwPccuM3KFwC643yyxEkFX mEUA== X-Gm-Message-State: AA+aEWYGBV8eYV8cwR9hMn9sfViEnCrzw6yHN2INomLgY0hWr01Wfjyi EjR01iS9VpB8KTUUgimiSI0= X-Google-Smtp-Source: AFSGD/UxnlbpCQGw4tEMDDhRLbG6E/svMCRG68jFw2Dx/nn3O4X/KQrxX77XyX4t+iB9Rf0l6fQieg== X-Received: by 2002:a81:eb06:: with SMTP id n6mr18289021ywm.488.1543877413697; Mon, 03 Dec 2018 14:50:13 -0800 (PST) Received: from [192.168.2.5] (adsl-74-240-55-188.jan.bellsouth.net. [74.240.55.188]) by smtp.gmail.com with ESMTPSA id f67sm5501536ywa.93.2018.12.03.14.50.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Dec 2018 14:50:13 -0800 (PST) Subject: Re: [gentoo-user] Software for checking CDs and DVDs for errors? To: gentoo-user@lists.gentoo.org References: <87y396h8xs.fsf@edu.turkuamk.fi> From: Dale Openpgp: preference=signencrypt Autocrypt: addr=rdalek1967@gmail.com; prefer-encrypt=mutual; keydata= xsFNBFpEtdQBEADI51WaryP3FJlDfmCQx2aPQpSppEKxqWhCTA8KFEcOVFmIIfiFAeekqMMD mhUxgZTtlQh7dsNqha6ioaYDqGKTv7oeJlPJw4hmIMJX3WYVSOHlsJUNM2jpDIAFeEKfup/T zDzFpuU2Qtr/Y0ji35wHyOAZLRckeNk705oRvE9wqi6noTP15Gxmw/U6aMzEfvu+wGEfCjgs 9bERmu+CS75PZEaFAv8RnsXUv1UcvQ45jmk/8ni/ogxE2h53OIp6c/hOlgJkSVRQWPZZyKZw lDiSUKCtMXPMdZ9w0X6RltQxtIQXO0KxAKaAp+tnL8z+0piafF5uW4RIglhT922RXKxxdZyx SjRgtE4V1IPtUcwPAeqVUZw2P1b4pjfPv7tNtMoFsIiY0ZnT+ua4ps6KOUeocRPKAX14mZkL jt/sZM7aIKiwyoteshRgWNNkxh4OiSxGCRUKNQI8M42cRSidvJZ6SGZXM3WpV28RPyF7+0Ba 0stEQwBGNF8uxgytY9rOJ7obmIpEZKx1p3W1O1hadOjBo2110jMDirRXtktMDfBDvVKkOZ06 vLu16uZLb0O52euhl2dMcEI3ZoCAFTKtdwMITIDj1TcMBZar6+bcwOicSFFogOLHQLJZRO5q I5szOIYW7+c0yNqPRLT3Sq7HzDyuyTUjmPZSAcqOwzX8GwUFkwARAQABzRtEYWxlIDxyZGFs ZWsxOTY3QGdtYWlsLmNvbT7CwZQEEwEIAD4WIQSUDVlCt0m0Z/PsCaxgB5lCagHqugUCWkS1 1AIbIwUJCWYBgAULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRBgB5lCagHqurR7D/45/q20 vXdrJGxrkNphotmlBtTpNbVauu5A2NDv3E1Il6yqRBfh4Xw7xFuwhz9DqThuvByU6566vr0z 7oVCK33dxRm4WA7YaogRQZy4VVIbHdrksnh2f702CFllqtn5Y29M2JtXG5jiiL3aZNEhoyP9 eMtzLPGs56yZ3eMkz4U7DEmWCAUr8bbuXW+eq/A0V5djcFdHfmanuDZSxzg+cZTpVOLolS2b pmNsPTSMkJ2MDY2Kfdg3gPhSaawo2agQfgnf9E7vSm7z/rlk8bBUWcPAP/XTN9ndVwOO3x74 EQv/M4EiCTtNpw3yapVZI2NhA1wqW648D7RxIPD8Y3nkJVDS4x5g54xDe1IUFOtVUSDAh+vY wUJt7vgbCeRjyT8XbuGW9RokIos3ALNaPoq/FDNEqefbmop0CPRih6aLFHWT4YBA6xQjLJuP LSNvalNqE5mef0giCtnLxo/lkjnP9Sv+t/5VSHda5zkVuN0+2w46SbGvXIHRkSoSi6XH3ccq KayJC+oTqo4xf9J30c7CV4rEcYnJcnxMw0vcYmU3DwjGfKxuKcLHgPr9mDNWvhteroA5wNWw NzQ72yAj7rsZVUXCxZgiPldSH3SXZJ/Jo6E9JouzQgRb/I4Vy4jx0Yw8rJLDx/ha82fn+FVe cFbiodVV5UD0inw488IAAtJE+Zi0t87BTQRaRLXUARAA38iHcF7M7GnkS73dazdLBgz2YJsu fpix/N/x4CvoHMqTuwi4ASz1WroYjl3KajeH0DSybyPdEQ7nffxIUt48deT3j/rwsJkPRvCF BpmcwxErd/Mbq0BgikYxXvO68aEAs4jBDR26YtONfjobEfd+Juhxci9UN9vTOCgSPhY+dxHs MZ0gHRzvMnpM3o3+oht/XRZr05RQx83DvTIqWnjDQlCseYYlbFp+rFTZi7ro71ULDThfCE0p +f+IQ3zX0cRKOcJGtNRvyWH6PxmN4td6Q7gPHfAsFPLsCpg7nZwOejtAktPejtSEXlN6QOKv bmRQxNtzgMtjzJNNJW2NtBz0DIW394+9stchQRKLqH8n8GnB6tlkfPg4vgf/kq14QQSZcb0F M36wk+i1Hk+TWYWbOBoUw9+X941Pw1JnglJ3tzpBh+36+pdG02Lbm2v6SaZ69zkDfzJ2Sfhb E+KQLibLkiCOhuSDLDWUgUeb0lJ/0qlo3vcQMTBuG5eiWiwBkp4C+ACb1f1Akq0mFvim+gCJ qJOTu0IDK9DjKLKglA3Z6sbeepnXq8fxB2Mo/SFSYEsGqUu4MLxgwnPg7zi+rKg7MhqdiBBE fqugmNguCEYZjJrGCCzwuqPXAZAcyzEYTGFKwI6NdEZ6v8Xc3om9MJomB3y1uzG6K7T9ue5H aw/2aqEAEQEAAcLBfAQYAQgAJhYhBJQNWUK3SbRn8+wJrGAHmUJqAeq6BQJaRLXUAhsMBQkJ ZgGAAAoJEGAHmUJqAeq6/ykP/ib6xEHednaXvzZvvj854PB5ffBqKkphbf51g6pxPvFBWMwY E7Bu/kq8e3hkp3rzX42BjqiUmfEe2OyfZCabXLybP8i/QRkHTzD5nLoIYLeL+62N/WQFW1NU VhqdfQbMhphNgP1mvG2Ib5R6S+Fb+vkw776oq6jLwUBP/o6PPpp62GyvFvFb9ekxV9+sE4yG V3DTqURBY+aXfc/MTzlCXp4u4QzFW9odfcb/kb9f1m/gZbWGihAqeMd1HViXQoMzTx6IuP13 eQAkKj4FlA2QMzbEOOKO6fliSt1JweJoh0OLCEAM/3q+LaflMvvjhl9ht00IUT/ySj3/dZdf EdTpuUAtnC3A3flwgK/aetkkOhrkx9hx4SKn6UHtAl+eCqP1Mae+nWzkisBL0/hBPEz713md 5I+4Y4QjIokRiz/5l/TFwpGu26zmDfDUkZmxZR/iNCW0VAmZE2YdyRm3PYcFcVXuZ1f/ff0D us9xGsO8V6F5EIwx/9Y6AWQdW7PoKHA21ri93PoRgjv+QoOifXEkhJwTKg5k5b1Tr7h9eRU/ Se2XigPVODjrN9FRfkx/JxlJcCs/igGJS05BmiZNIIRDKBGdXy/Fj5HQB2q5v5DfvrLMNTwK Aa8pn/em1SKC/l9aV9ygpN+cQPKoQjGxPPaId/rwX+GVxKl2vakjHLPLQmm3 Message-ID: Date: Mon, 3 Dec 2018 16:50:12 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.9.1 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 X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Archives-Salt: 2ccd8c11-b704-4547-afce-cf9b017538b5 X-Archives-Hash: ae1da5d1f2bae12235be8f4eb931f349 Jack wrote: > On 2018.12.03 11:27, Pouru Lasse wrote: >> I've got a bunch of scratched disc-based games (PS2, Xbox 360) that I'd >> like to check for errors. Is there any program for Linux that does this? >> I found and tried dvdisaster, but it only works for CDs, not >> DVDs. Everything else seems to be Windows-only. > > I have not installed dvdisaster, but I'd be really surprised if it > won't check dvd's.  The ebuild description is "Tool for creating error > correction data (ecc) for optical media (DVD, CD, BD)" so if it really > balks at a dvd, I'd file a bug. > > Also - what is your criteria for finding an error?  Could you just > read the entire disk or copy to /dev/null and just look for any read > errors?  (I'm not sure if I'd try cp or dd or some variant on dd.) > > Jack > I was wondering if the checksums could be checked?  If the OP can find the checksum for the DVD as it comes from the factory, then he could check what he has against that.  Question is, is that info even available or does it vary over batches of DVDs?  If it varies, it may not be possible to test that way even if checksums are available.  Thing that makes this different for the OP, a damaged audio or even a video DVD can be corrected sometimes within the player itself.  I know audio can and has done so for ages.  Video maybe, maybe not.  I suspect video game DVDs fall more into the category of a data disk tho.  A scratch may not be a problem with audio but when it comes to data, it could be broken completely.  Another thought, maybe if one is bad the maker would replace for a small fee??  Just throwing that out there in case checksums are available and it could be done that way.  Sort of doubt it tho.  Dale :-)  :-)