From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 3E3DA138CBF for ; Mon, 16 Mar 2015 16:51:48 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 48358E09D8; Mon, 16 Mar 2015 16:51:42 +0000 (UTC) Received: from mx-relay37-dus.antispameurope.com (mx-relay37-dus.antispameurope.com [94.100.134.237]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id D8656E09BF for ; Mon, 16 Mar 2015 16:51:39 +0000 (UTC) Received: from smtpsrv2.fokus.fraunhofer.de ([195.37.77.176]) by mx-gate37-dus.antispameurope.com; Mon, 16 Mar 2015 17:51:37 +0100 Received: from FEYNMAN.fokus.fraunhofer.de ([IPv6:2001:638:806:9::202]) by smtpsrv2.fokus.fraunhofer.de (8.14.4/8.14.4) with ESMTP id t2GGpYg0013460 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK) for ; Mon, 16 Mar 2015 17:51:36 +0100 Received: from rigel (10.147.13.100) by FEYNMAN.fokus.fraunhofer.de (10.147.9.202) with Microsoft SMTP Server id 14.3.224.2; Mon, 16 Mar 2015 17:51:34 +0100 Date: Mon, 16 Mar 2015 17:51:34 +0100 From: Joerg Schilling To: Subject: Re: [gentoo-user] Re: Damaged CD medium Message-ID: <55070a16.vqEIci9+glfm0MwN%Joerg.Schilling@fokus.fraunhofer.de> References: <201503131631.02862.michaelkintzios@gmail.com> <201503140024.53490.michaelkintzios@gmail.com> <5506ae2a.LukiKjpOj5KWAOWA%Joerg.Schilling@fokus.fraunhofer.de> <201503161626.18854.michaelkintzios@gmail.com> In-Reply-To: <201503161626.18854.michaelkintzios@gmail.com> 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" Content-Transfer-Encoding: 8bit X-KSE-Antivirus-Interceptor-Info: protection disabled X-cloud-security-sender:joerg.schilling@fokus.fraunhofer.de X-cloud-security-recipient:gentoo-user@lists.gentoo.org X-cloud-security-Virusscan:CLEAN X-cloud-security-disclaimer: This E-Mail was scanned by E-Mailservice on mx-gate37-dus with 822EA2118004 X-cloud-security-connect: smtpsrv2.fokus.fraunhofer.de[195.37.77.176], TLS=, IP=195.37.77.176 X-cloud-security:scantime:.1709 X-Archives-Salt: 855be1ba-cd1c-4827-bf5e-6ae2245aa4c9 X-Archives-Hash: 8e2af6e823522031fd2f37c68a3d8e88 Mick wrote: > scsibus2: > 2,0,0 200) 'PIONEER ' 'BD-RW BDR-209D' '1.10' Removable CD-ROM > 2,1,0 201) * > 2,2,0 202) * > 2,3,0 203) * > 2,4,0 204) * > 2,5,0 205) * > 2,6,0 206) * > 2,7,0 207) * Pioneer is a good manufacturer... > Running 'readcd f=cd_test.out -noerror' gives me an ever increasing number of > errors, on each sector (currently up to sector 6 and still going strong): > > # readcd f=cd_test.out -noerror > No target specified, trying to find one... > Using dev=2,0,0. > Read speed: 22160 kB/s (CD 125x, DVD 16x, BD 4x). > Write speed: 22160 kB/s (CD 125x, DVD 16x, BD 4x). > Capacity: 250000 Blocks = 500000 kBytes = 488 MBytes = 512 prMB > Sectorsize: 2048 Bytes > Copy from SCSI (2,0,0) disk to file 'cd_test.out' > end: 250000 > readcd: Input/output error. read_g1: scsi sendcmd: no error > CDB: 28 00 00 00 00 00 00 00 40 00 > status: 0x2 (CHECK CONDITION) > Sense Bytes: F0 00 03 00 00 00 00 0E 00 00 00 00 11 05 00 00 > Sense Key: 0x3 Medium Error, Segment 0 > Sense Code: 0x11 Qual 0x05 (l-ec uncorrectable error) Fru 0x0 > Sense flags: Blk 0 (valid) > cmd finished after 7.030s timeout 40s This is an error at the layer above the audio sector. You may try to use: cdrecord -noerror -edc-corr and see whether readcd is able to do better corrections than the drive. > readcd: Input/output error. Cannot read source disk > readcd: Retrying from sector 0. > .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~- > ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~ > readcd: Input/output error. Error on sector 0 not corrected. Total of 1 > errors. > readcd: -noerror set, continuing ... > .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~- > ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~ > readcd: Input/output error. Error on sector 1 not corrected. Total of 2 > errors. > readcd: -noerror set, continuing ... > .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~- > ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~ > readcd: Input/output error. Error on sector 2 not corrected. Total of 3 > errors. > readcd: -noerror set, continuing ... > .~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~- > ~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~ > [snip ...] > > > There are no visible scratches on the disk, so I am thinking this is not a > mechanical fault, but something to do with the burner. I am glad that I > learned about readcd, but given the above results shall I give up hope and ask > the guy to burn me a new CD using a different burner this time? It may be that the firmware did not understand the media and used a wrong laser calibration for writing. I recommend to use Verbatim media if you like to do archiving. Note that piles of 50+ CDs may have worse media than thos up to 25 per package. You can check this with cdrecord -v -atip verbatim e.g. sells cheap media from Moser Baer India (MBI) but still with better quality than MBI labelled media. Better verbatim media identify as Verbatim (DVDs and BluRays may use IDs from the business group). Jörg -- EMail:joerg@schily.net (home) Jörg Schilling D-13353 Berlin joerg.schilling@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'