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 1MBwzW-0002LW-1y for garchives@archives.gentoo.org; Wed, 03 Jun 2009 20:23:18 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id D8BC3E04DC; Wed, 3 Jun 2009 20:23:16 +0000 (UTC) Received: from relay04-haj2.antispameurope.com (relay04-haj2.antispameurope.com [83.246.65.54]) by pigeon.gentoo.org (Postfix) with ESMTP id 8E5D5E04DC for ; Wed, 3 Jun 2009 20:23:16 +0000 (UTC) Received: by relay04-haj2.antispameurope.com (ASE-Secure-MTA, from userid 1000) id 0ED7A5EC1F4; Wed, 3 Jun 2009 22:23:14 +0200 (CEST) Received: from pluto.fokus.fraunhofer.de (pluto.fokus.fraunhofer.de [195.37.77.164]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by relay04-haj2.antispameurope.com (ASE-Secure-MTA) with ESMTP id 9E0285EC138 for ; Wed, 3 Jun 2009 22:23:14 +0200 (CEST) Received: from EXCHSRV.fokus.fraunhofer.de (bohr.fokus.fraunhofer.de [10.147.9.231]) by pluto.fokus.fraunhofer.de (8.14.2/8.13.7) with SMTP id n53KNEQi021503 for ; Wed, 3 Jun 2009 22:23:14 +0200 (MEST) Received: from rigel ([10.147.65.195]) by EXCHSRV.fokus.fraunhofer.de with Microsoft SMTPSVC(6.0.3790.3959); Wed, 3 Jun 2009 22:23:14 +0200 Date: Wed, 03 Jun 2009 22:23:10 +0200 From: Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling) To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Re: Verification of audio CD copy? Message-ID: <4a26dbae.1n5ARf7YEUa/qIcI%Joerg.Schilling@fokus.fraunhofer.de> References: <5bdc1c8b0906021803s357a9dfclb3f9a9b2cf36b9d8@mail.gmail.com> <58965d8a0906021942v4fb276e0od1d3c10c33ec96a0@mail.gmail.com> <5bdc1c8b0906021948v78682990o350549ee74fd624c@mail.gmail.com> <4A25F2F1.7000401@gmail.com> <4a263c54.q9xglPOI98Mxu9Yz%Joerg.Schilling@fokus.fraunhofer.de> In-Reply-To: User-Agent: nail 11.22 3/20/05 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=ISO-8859-1 X-OriginalArrivalTime: 03 Jun 2009 20:23:14.0414 (UTC) FILETIME=[1F55D0E0:01C9E489] Content-Transfer-Encoding: quoted-printable X-Archives-Salt: fcfd2ea8-fa01-4097-8025-89e61ccdba39 X-Archives-Hash: bad977fe400b8eebcd0ca0fa034630e4 Nikos Chantziaras wrote: > Joerg Schilling wrote: > > There is no copy protection system for audio CDs. > > There is, unfortunately. An example is "Cactus Data Shield". The bad=20 > thing is that it even breaks the standard, resulting in the copy=20 > protected audio CD not playing back in some players (PC CD-ROMs for=20 > example or CD players with MP3 support). So you see that there is no copy-protection for audio CDs. As I mentioned, there are intentional defects. But cdda2wav can deal with= all=20 these defects...... and most drive manufacturer did listen to me and impl= ement enhancements to their firmware to e.g. prevent the drive to go into an en= dless loop with a "multi-session disk" that implements a TOC loop.=20 If you can play a CD, you can copy it. These defective 120mm disks implem= ent=20 use/play protection. If the defect you like to deal with is called "Cactus Data Shield", you n= eed to=20 copy the CD-look-alike as early as possible as "Cactus Data Shield" mainl= y is excessive (more than 10 times than allowed) C1 errors (these errors make = the=20 disk junk from the Philips quality rules for CDs). > Such CDs are actually required to refrain from using the "CDDA" logo on= =20 > their casing. Some even mention that they are copy protected. > > See: > > http://en.wikipedia.org/wiki/Copy_protection#Copy_protection_for_audio_= CDs > > for more info. Unfortunately not very accurate :-( > In any case, it's very difficult or even impossible to copy some of the= m=20 > with regular CD-ROM drives. Some require analog copying or using the=20 > digital-out connector of the drive. This info is incorrect. Cdda2wav includes fixes for all known defects in = CDs. I personally know of no such intentionally damaged disk that cannot be ex= tracted by cdda2wav -paranoia.=20 BTW: this is where you see that cdparranoia(1) is now 12 year old and=20 unmaintained since ~ 10 years. cdda2wav -paranoia gives much better resul= ts that cdparanoia. J=F6rg --=20 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) J=F6rg Schilling D-13353 = Berlin js@cs.tu-berlin.de (uni) =20 joerg.schilling@fokus.fraunhofer.de (work) Blog: http://schily.blo= gspot.com/ URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schil= y