www.makemkv.com

Hello everyone:

I've tried backing up two different copies of Dances with Wolves bluray on two different bluray drives.

makemkv version is 1.10.5.
protection listed AACS v19, BD+ v2010.10

Here are the errors I'm getting...
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Error 'OS error - STATUS_DEVICE_DATA_ERROR' occurred while reading '\Device\CdRom2' at offset '6775437312'
Error 'OS error - STATUS_DEVICE_DATA_ERROR' occurred while reading '\Device\CdRom2' at offset '6775437312'
Error 'OS error - STATUS_DEVICE_DATA_ERROR' occurred while reading '\Device\CdRom2' at offset '6775437312'
Error 'OS error - STATUS_DEVICE_DATA_ERROR' occurred while reading '\Device\CdRom2' at offset '6775437312'
Error 'OS error - STATUS_DEVICE_DATA_ERROR' occurred while reading '\Device\CdRom2' at offset '6775437312'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '6775437312'
Failed to save title 0 to file F:/Video/Dances_with_Wolves/Dances_with_Wolves_t00.mkv
Encountered 11 errors of type 'Read Error' - see /errors/read/
0 titles saved, 1 failed

Anyone have any ideas?

Thanks!

Please see here: http://www.makemkv.com/forum2/viewtopic.php?f=8&t=15055

Speaking from personal experience, it doesn't happen often but it does happen that multiple copies of a Blu-Ray will fail in multiple players; could be you bought discs from the same batch which have some kind of mastering defect, or just bad luck that each has its own unique damage. Since you have two drives, the issues is not likely there so try cleaning the discs thoroughly as described, and if that doesn't work, replace again.