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 1MBhWG-0003Jl-GD for garchives@archives.gentoo.org; Wed, 03 Jun 2009 03:52:04 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id A2CE2E039B; Wed, 3 Jun 2009 03:52:02 +0000 (UTC) Received: from mail-pz0-f198.google.com (mail-pz0-f198.google.com [209.85.222.198]) by pigeon.gentoo.org (Postfix) with ESMTP id 5E531E039B for ; Wed, 3 Jun 2009 03:52:02 +0000 (UTC) Received: by pzk36 with SMTP id 36so1012012pzk.32 for ; Tue, 02 Jun 2009 20:52:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=EG7SNmotcAdg06Lyz/hF+XLa9hEoyLcaB09GPgyQ/g4=; b=CE96VwNiQdmx0yX+cRmqE2cA2kqBNagvwn8PufDyySPTQ9TgFFq/1/hgsg87lnhd/K Ioy+ZmqZqjvM1KQvE/SJBDzxAtPBY0g4X7yWEphgSFAlJeehebXVnXHeY9M2eBDHVWHo vlfHtNNFnd16XxHu/4MAyzdq+2j8UA+NmVAWo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; b=lYfip4ztiDOzqdcLcM59rzTPZV0548fJZRcGSIhQ6DPsCyVc2Yi3melo7HYUDqF6/M JVoYuX0QxUPX3d79ZyQ3kc95bPTfHqw7Rhp+CKfJvE72/Bo+wHYr8pkM/IVcDuoPQjnz mIEH5gbKqJz+2lUMlPB++0oAlouStgcmG77E8= Received: by 10.114.79.18 with SMTP id c18mr758681wab.226.1244001121860; Tue, 02 Jun 2009 20:52:01 -0700 (PDT) Received: from ?64.89.163.163? (r163h163.dixie-net.com [64.89.163.163]) by mx.google.com with ESMTPS id k2sm19892170rvb.0.2009.06.02.20.51.16 (version=SSLv3 cipher=RC4-MD5); Tue, 02 Jun 2009 20:52:01 -0700 (PDT) Message-ID: <4A25F2F1.7000401@gmail.com> Date: Tue, 02 Jun 2009 22:50:09 -0500 From: Dale User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.21) Gecko/20090529 SeaMonkey/1.1.16 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Verification of audio CD copy? References: <5bdc1c8b0906021803s357a9dfclb3f9a9b2cf36b9d8@mail.gmail.com> <58965d8a0906021942v4fb276e0od1d3c10c33ec96a0@mail.gmail.com> <5bdc1c8b0906021948v78682990o350549ee74fd624c@mail.gmail.com> In-Reply-To: <5bdc1c8b0906021948v78682990o350549ee74fd624c@mail.gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Archives-Salt: 9c681eb3-7ce9-4262-96c7-1f45276723bd X-Archives-Hash: 465910fbeb7f3775568972c426462fb6 Mark Knecht wrote: > On Tue, Jun 2, 2009 at 7:42 PM, Paul Hartman > wrote: > >> On Tue, Jun 2, 2009 at 8:03 PM, Mark Knecht wrote: >> >>> Hi, >>> I've got a bit of a problem recently with (I think) k3b. Over the >>> last couple of months *some* copies of CDs made in k3b using the Clone >>> Copy feature do not reliably play in my car's CD player. I've tried >>> multiple CD spindles and I've tried burning the copies on two >>> different Gentoo machines - one 32-bit and the other 64-bit - with the >>> same results. The thing that is VERY strange about this problem is >>> that some CDs and all copies of those CDs play fine. For other CDs the >>> originals play fine but every copy I make fails, and if they fail, >>> they fail using either Gentoo machine to copy them. (Hope that's >>> clear....) >>> >>> I'm wondering if there is a program that can verify the contents of >>> each CD against each other, bit for bit, to identify whether this is a >>> problem on all of my computers or whether it's something about my >>> car's CD. The strange thing is that the original CDs play fine in the >>> car. It's only the copies that sometimes don't, and it's only the >>> copies of *some* CDs, not all CDs. >>> >>> I've been using these same machine and same car CD player for years >>> and everything has always been fine. Now for the last 2-3 months >>> nearly 50% of what I copy fails. >>> >> I don't think there's a way to do bit-for-bit compare of audio CDs... >> if it's a burning issue I would try burning at a slower speed (as slow >> as you can tolerate waiting for). >> >> Maybe your car's CD player/laser is dying. Perhaps try taking some old >> CDs that you know used to work and see if they still play okay. The CD >> player in my car for the past month or so has decided to be unable to >> play a CD without skipping like crazy. It is maddening. >> >> >> > Reading around on the web I got pretty much the same picture - that > it's not possible to verify 100% bit-for-bit that an audio CD is > identical. Still, I would think that if I made whatever the 'iso' is > of a single CD twice and compared the two of those I'd expect them to > be the same, but maybe we cannot really guarantee the burning > operation is exactly bit-for-bit. I don't know. > > It likely is the car's CD player but it's been hard to prove so far. > It plays all originals fine. It plays most copies fine. However it > fails on all copies of certain CD lately no matter what Gentoo machine > I burn them on. Strangeness. > > Thanks for answering back! > > - Mark > > > Could it be some copy protection thing that is new maybe? Something k3b can't quite copy. Dale :-) :-)