Re: [gentoo-user] Re: Damaged CD medium
Mick michaelkintz...@gmail.com wrote: This is an error at the layer above the audio sector. You may try to use: cdrecord -noerror -edc-corr I think you meant to say: readcd -noerror -edc-corr You are of course correct. This is was I am getting. # readcd -noerror -edc-corr 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: 25 Blocks = 50 kBytes = 488 MBytes = 512 prMB Sectorsize: 2048 Bytes Copy from SCSI (2,0,0) disk to file '/dev/null' end:25 readcd: Input/output error. read_cd: scsi sendcmd: no error CDB: BE 00 00 00 00 00 00 00 37 F8 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 05 00 00 00 00 0E 00 00 00 00 64 00 00 00 Sense Key: 0x5 Illegal Request, Segment 0 Sense Code: 0x64 Qual 0x00 (illegal mode for this track) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.016s timeout 40s 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 ... . readcd: Input/output error. Error on sector 3 not corrected. Total of 4 errors. readcd: -noerror set, continuing ... The count of errors runs in the thousands, until I cancel the command. As mentioned, the high level error correction in readcd can only help when the drive does not include a decent Reed Solomon implementation in it's firmware. What you could do is to check other sector ranges to find out whether the hole capacity of the CD is unreadable or whether there are readable parts inside. Note however that if you come close to the outer edge of the CD (1-2cm) the error rate usually increases. check the sectors= option in the man page... Jörg -- EMail:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'
Re: [gentoo-user] Re: Damaged CD medium
Mick michaelkintz...@gmail.com wrote: I managed to recover the files on the CD! I used ddrescue which eventually was able to read the media and then ran photorec to retrieve the jpeg photos from the rescued image. ddrescue could not read the CD every time, but reinserting a few times on my laptop managed to start reading it. Given the fact that readcd includes the best possible algorithm for recovering, this sounds a bit surprising. I however know that it sometimes helps to cool down the media a bit. Jörg -- EMail:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'
Re: [gentoo-user] Re: Damaged CD medium
I managed to recover the files on the CD! I used ddrescue which eventually was able to read the media and then ran photorec to retrieve the jpeg photos from the rescued image. ddrescue could not read the CD every time, but reinserting a few times on my laptop managed to start reading it. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Re: Damaged CD medium
Mick michaelkintz...@gmail.com wrote: On Friday 13 Mar 2015 22:24:32 Neil Bothwick wrote: On Fri, 13 Mar 2015 17:54:01 + (UTC), Grant Edwards wrote: IIRC, there are ebuilds for ddrescue, photorec, and testdisk. There's also app-cdr/dvdisaster. Thank you all. dd and ddrescue don't work, because the block device is not recognised. I had already tried this with not success. dvddisaster requires to have created a file with error correction (ecc) data in advance of the hardware failure, then use that to recover the lost bits. readcd is great - thanks Joerg! However, this is what I got in my first attempt: = $ readcd dev=1,0,0 -v scsidev: '1,0,0' scsibus: 1 target: 0 lun: 0 Linux sg driver version: 3.5.36 readcd: Input/output error. set cd speed: scsi sendcmd: no error CDB: BB 00 FF FF FF FF 00 00 00 00 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00 Sense Key: 0x2 Not Ready, Segment 0 Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming ready) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.042s timeout 40s Read speed: 11080 kB/s (CD 62x, DVD 8x, BD 2x). Write speed: 0 kB/s (CD 0x, DVD 0x, BD 0x). 0:read 1:veri 2:erase 3:read buffer 4:cache 5:ovtime 6:cap 7:wne 8:floppy 9:verify 10:checkcmds 11:read disk 12:write disk 13:scsireset 14:seektest 15: readda 16: reada 17: c2err 18:readcd 19: lin 20: full toc Enter selection: 0 (0 - 20)/cr: 0:read 1:veri 2:erase 3:read buffer 4:cache 5:ovtime 6:cap 7:wne 8:floppy 9:verify 10:checkcmds 11:read disk 12:write disk 13:scsireset 14:seektest 15: readda 16: reada 17: c2err 18:readcd 19: lin 20: full toc Enter selection: 4 (0 - 20)/cr:5==Not sure if I entered the correct No. Doing 1000 'TEST UNIT READY' operations. Time total: 0.296sec Doing 1000 'SEEK_G1 (0)' operations. Time total: 418.463sec 0:read 1:veri 2:erase 3:read buffer 4:cache 5:ovtime 6:cap 7:wne 8:floppy 9:verify 10:checkcmds 11:read disk 12:write disk 13:scsireset 14:seektest 15: readda 16: reada 17: c2err 18:readcd 19: lin 20: full toc Enter selection: 10 (0 - 20)/cr: = Try to read the man page and use the direct access to the related functions. From your printout, I cannot even tell whether the device argument was correct. Start with readcd -scanbus If you continue with readcd dev=xxx (only needed at all if you have more than one CD like drive), you could e.g. try readcd f=out-file -noerror If your drive cannot read the toc or otherwise believes there is no medium, readcd cannot help. You need to check why the toc cannot be read. If the CD ic scratched, then try to use Plexiglass polishing paste. Be carefull to prevent polishing paste to slip to the paint side and to let the CD move on the paint side. Jörg -- EMail:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'
Re: [gentoo-user] Re: Damaged CD medium
Mick michaelkintz...@gmail.com wrote: The resultant disk5.out is 0 bytes. Even when I try to start from sector 1 or 2, I end up with 0 byte output file. Any other settings I could try? did you try to read the man page? Jörg -- EMail:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'
Re: [gentoo-user] Re: Damaged CD medium
Mick michaelkintz...@gmail.com 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: 25 Blocks = 50 kBytes = 488 MBytes = 512 prMB Sectorsize: 2048 Bytes Copy from SCSI (2,0,0) disk to file 'cd_test.out' end:25 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:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'
Re: [gentoo-user] Re: Damaged CD medium
On Monday 16 Mar 2015 10:19:22 Joerg Schilling wrote: Try to read the man page and use the direct access to the related functions. From your printout, I cannot even tell whether the device argument was correct. Start with readcd -scanbus Thank you Joerg, I had two CD drives in the PC I tried previously. readcd was clever enough to identify the drive with the CD in it, but I specified the device on the command line just to be sure, following the man page. This time I tried using a different PC with a single CD drive: # readcd -scanbus scsibus0: 0,0,0 0) 'ATA ' 'OCZ-ARC100 ' '1.00' Disk 0,1,0 1) * 0,2,0 2) * 0,3,0 3) * 0,4,0 4) * 0,5,0 5) * 0,6,0 6) * 0,7,0 7) * scsibus1: 1,0,0 100) 'ATA ' 'WDC WD30EFRX-68E' '0A82' Disk 1,1,0 101) * 1,2,0 102) * 1,3,0 103) * 1,4,0 104) * 1,5,0 105) * 1,6,0 106) * 1,7,0 107) * 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) * If you continue with readcd dev=xxx (only needed at all if you have more than one CD like drive), you could e.g. try readcd f=out-file -noerror If your drive cannot read the toc or otherwise believes there is no medium, readcd cannot help. You need to check why the toc cannot be read. If the CD ic scratched, then try to use Plexiglass polishing paste. Be carefull to prevent polishing paste to slip to the paint side and to let the CD move on the paint side. Jörg 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: 25 Blocks = 50 kBytes = 488 MBytes = 512 prMB Sectorsize: 2048 Bytes Copy from SCSI (2,0,0) disk to file 'cd_test.out' end:25 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 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? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Re: Damaged CD medium
On Monday 16 Mar 2015 16:51:34 Joerg Schilling wrote: Mick michaelkintz...@gmail.com 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... Ah! Yes, I was paying attention when you mentioned this in an older thread. I also checked online reviews to confirm that they were still making good devices before I ordered this one. 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: 25 Blocks = 50 kBytes = 488 MBytes = 512 prMB Sectorsize: 2048 Bytes Copy from SCSI (2,0,0) disk to file 'cd_test.out' end:25 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 I think you meant to say: readcd -noerror -edc-corr This is was I am getting. # readcd -noerror -edc-corr 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: 25 Blocks = 50 kBytes = 488 MBytes = 512 prMB Sectorsize: 2048 Bytes Copy from SCSI (2,0,0) disk to file '/dev/null' end:25 readcd: Input/output error. read_cd: scsi sendcmd: no error CDB: BE 00 00 00 00 00 00 00 37 F8 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 05 00 00 00 00 0E 00 00 00 00 64 00 00 00 Sense Key: 0x5 Illegal Request, Segment 0 Sense Code: 0x64 Qual 0x00 (illegal mode for this track) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.016s timeout 40s 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 ... . readcd: Input/output error. Error on sector 3 not corrected. Total of 4 errors. readcd: -noerror set, continuing ... The count of errors runs in the thousands, until I cancel the command. 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). Thanks again for your help (and software) Jörg. I usually buy memorex and verbatim when I burn my own CDs with good results, but this sample was created by a friend of mine, who's now a few thousand miles away. I will be using my media and burner when I meet him next time, to avoid disappointment. ;-) -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Re: Damaged CD medium
On Saturday 14 Mar 2015 00:24:30 Mick wrote: On Friday 13 Mar 2015 22:24:32 Neil Bothwick wrote: On Fri, 13 Mar 2015 17:54:01 + (UTC), Grant Edwards wrote: IIRC, there are ebuilds for ddrescue, photorec, and testdisk. There's also app-cdr/dvdisaster. Thank you all. dd and ddrescue don't work, because the block device is not recognised. I had already tried this with not success. dvddisaster requires to have created a file with error correction (ecc) data in advance of the hardware failure, then use that to recover the lost bits. readcd is great - thanks Joerg! However, this is what I got in my first attempt: = [snip ...] = Does this above mean that the first sector is damaged? How to proceed from here? I tried various options and I invariably end up with a sector 0 error: Enter selection: 9 (0 - 20)/cr:11 Capacity: 25 Blocks = 50 kBytes = 488 MBytes = 512 prMB Sectorsize: 2048 Bytes Ignore disk size? yes Copy from SCSI (0,0,0) disk to file Enter filename [disk.out]: disk5.out Enter starting sector for copy: 0 (0 - 999)/cr: Enter number of sectors to copy: 1000 (1 - 1000)/cr: Enter number of sectors per copy: 64 (1 - 64)/cr: end: 1000 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: 70 00 03 00 00 00 00 12 00 00 00 00 11 00 00 00 Sense Key: 0x3 Medium Error, Segment 0 Sense Code: 0x11 Qual 0x00 (unrecovered read error) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 1.964s timeout 40s 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. The resultant disk5.out is 0 bytes. Even when I try to start from sector 1 or 2, I end up with 0 byte output file. Any other settings I could try? -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Re: Damaged CD medium
Grant Edwards grant.b.edwa...@gmail.com wrote: On 2015-03-13, Mick michaelkintz...@gmail.com wrote: Hi All, I was given a CD with some pictures, but I am not able to mount it. This is what dmesg reveals: Here's what I recommend. 1) Use ddrescue to read as many data blocks as you can off the CD. http://www.gnu.org/software/ddrescue/ This will ot really help. If you like to do real read-retries at low level better check readcd. Jörg -- EMail:jo...@schily.net(home) Jörg Schilling D-13353 Berlin joerg.schill...@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'
Re: [gentoo-user] Re: Damaged CD medium
On Fri, 13 Mar 2015 17:54:01 + (UTC), Grant Edwards wrote: IIRC, there are ebuilds for ddrescue, photorec, and testdisk. There's also app-cdr/dvdisaster. -- Neil Bothwick A consultant is a person who borrows your watch, tells you what time it is, pockets the watch, and sends you a bill for it. pgpa1_YrU5vyV.pgp Description: OpenPGP digital signature
Re: [gentoo-user] Re: Damaged CD medium
On Friday 13 Mar 2015 22:24:32 Neil Bothwick wrote: On Fri, 13 Mar 2015 17:54:01 + (UTC), Grant Edwards wrote: IIRC, there are ebuilds for ddrescue, photorec, and testdisk. There's also app-cdr/dvdisaster. Thank you all. dd and ddrescue don't work, because the block device is not recognised. I had already tried this with not success. dvddisaster requires to have created a file with error correction (ecc) data in advance of the hardware failure, then use that to recover the lost bits. readcd is great - thanks Joerg! However, this is what I got in my first attempt: = $ readcd dev=1,0,0 -v scsidev: '1,0,0' scsibus: 1 target: 0 lun: 0 Linux sg driver version: 3.5.36 readcd: Input/output error. set cd speed: scsi sendcmd: no error CDB: BB 00 FF FF FF FF 00 00 00 00 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00 Sense Key: 0x2 Not Ready, Segment 0 Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming ready) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.042s timeout 40s Read speed: 11080 kB/s (CD 62x, DVD 8x, BD 2x). Write speed: 0 kB/s (CD 0x, DVD 0x, BD 0x). 0:read 1:veri 2:erase 3:read buffer 4:cache 5:ovtime 6:cap 7:wne 8:floppy 9:verify 10:checkcmds 11:read disk 12:write disk 13:scsireset 14:seektest 15: readda 16: reada 17: c2err 18:readcd 19: lin 20: full toc Enter selection: 0 (0 - 20)/cr: 0:read 1:veri 2:erase 3:read buffer 4:cache 5:ovtime 6:cap 7:wne 8:floppy 9:verify 10:checkcmds 11:read disk 12:write disk 13:scsireset 14:seektest 15: readda 16: reada 17: c2err 18:readcd 19: lin 20: full toc Enter selection: 4 (0 - 20)/cr:5==Not sure if I entered the correct No. Doing 1000 'TEST UNIT READY' operations. Time total: 0.296sec Doing 1000 'SEEK_G1 (0)' operations. Time total: 418.463sec 0:read 1:veri 2:erase 3:read buffer 4:cache 5:ovtime 6:cap 7:wne 8:floppy 9:verify 10:checkcmds 11:read disk 12:write disk 13:scsireset 14:seektest 15: readda 16: reada 17: c2err 18:readcd 19: lin 20: full toc Enter selection: 10 (0 - 20)/cr: = Here I tried different values, none of which produced anything until: = Enter selection: 10 (0 - 20)/cr:11 Capacity: 2295104 Blocks = 4590208 kBytes = 4482 MBytes = 4700 prMB Sectorsize: 2048 Bytes Ignore disk size? y Copy from SCSI (1,0,0) disk to file Enter filename [disk.out]: disk.out Enter starting sector for copy: 0 (0 - 999)/cr:0 Enter number of sectors to copy: 1000 (1 - 1000)/cr: Enter number of sectors per copy: 64 (1 - 64)/cr: end: 1000 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: 70 00 04 00 00 00 00 0A 00 00 00 00 3E 02 00 00 Sense Key: 0x4 Hardware Error, Segment 0 Sense Code: 0x3E Qual 0x02 (timeout on logical unit) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 10.414s timeout 40s readcd: Input/output error. Cannot read source disk readcd: Retrying from sector 0. .~~-readcd: Input/output error. test unit ready: scsi sendcmd: no error CDB: 00 00 00 00 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 3A 00 00 00 Sense Key: 0x2 Not Ready, Segment 0 Sense Code: 0x3A Qual 0x00 (medium not present) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.009s timeout 40s ~readcd: Input/output error. test unit ready: scsi sendcmd: no error CDB: 00 00 00 00 00 00 status: 0x2 (CHECK CONDITION) = This repeated itself for a while, until: = readcd: Input/output error. Error on sector 0 not corrected. Total of 1 errors. readcd: Input/output error. read_g1: scsi sendcmd: no error CDB: 28 00 00 00 00 00 00 00 01 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 3A 00 00 00 Sense Key: 0x2 Not Ready, Segment 0 Sense Code: 0x3A Qual 0x00 (medium not present) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.009s timeout 40s Time total: 156.756sec Read 0.00 kB at 0.0 kB/sec. Max corected retry count was 0 (limited to 128). The following 1 sector(s) could not be read correctly: 0 readcd: Input/output error. test unit ready: scsi sendcmd: no error CDB: 00 00 00 00 00 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 3A 00 00 00 Sense Key: 0x2 Not Ready, Segment 0 Sense Code: 0x3A Qual 0x00 (medium not present) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.010s timeout 40s readcd: Device not ready. $ = Does this above mean that the first sector is damaged? How to proceed from here? -- Regards, Mick signature.asc