www.makemkv.com

Dear All -

I have been getting errors that when trying to back up the DVD of Leonard Bernstein: Reaching For The Note this disk that it won't create the ISO saying that it failed. When I tried to create MKVs of the disk, it also said that it failed to save title 21 to file .... encountered 17 errors of type 'Read Error'

Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk8' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_01_1.VOB' at offset '3479349248'
Failed to save title 21 to file /Users/gmh/Movies/UNDEFINED/American Masters (1986) S13E01 Leonard Bernstein Reaching for the Note.mkv
Encountered 17 errors of type 'Read Error' - see http://www.makemkv.com/errors/dvdread/
21 titles saved, 1 failed

Any guidance?

Looks like the errors I'm seeing from several of my disks over the last few weeks... There is a spot that cannot currently be read, and MakeMKV is complaining about it.

Best advise is to clean the disk carefully (soft cloth and a cleaner that doesn't attack plastic), and try again. Do not wipe it in a circular motion, but across the disk (radially).

Unfortunately, it does not seem to have made any difference under my (first) attempt... is there a recommended cleaner to use?

My personal choice for DVDs has been a non-aerosol equivalent of Lemon Pledge, but most generics work as well. Others you dish soap in a solution. The main thing is that it cuts through fingerprints, and fills in scratches.

For scratches, it sometimes does not have a permanent cleaning ability. Rip it and put the disk back in storage.