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I've encountered an error when trying to save The Sandlot on Blu Ray. Error is below:

Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17320771584'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17323130880'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17323720704'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17326338048'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17326338048'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17326338048'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17342398464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17342724096'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00800.m2ts' at offset '17342724096'
DEBUG: Code 0 at NO6cEm h"ZpwS!m(f]e):121263038
DEBUG: Code 0 at 0:{7JWIebi~Lc)P*7Hdj:121262302
DEBUG: Code 0 at NO6cEm h"ZpwS!m(f]e):213130559
DEBUG: Code 8468127 at NO6cEm h"ZpwS!m(f]e):29393286
DEBUG: Code 0 at |LP+fTt#xU'BbDIydt"~[:29398967
DEBUG: Code 0 at |LP+fTt#xU'BbDIydt"~[:29398967
DEBUG: Code 0 at |LP+fTt#xU'BbDIydt"~[:29398967
LIBMKV_TRACE: Exception: Error while reading input

System: OS X 10.10.4
MakeMKV v. 1.9.4
Generic external Blu Ray drive

Any help would be appreciated. Thanks

Your drive is having problems reading the disk. MakeMKV cannot work around that.

First thing to try is cleaning the disk, and re-ripping. If you still get errors in the same locations, there may be scratches preventing reading.

I have had disks that give uncorrectable errors in one drive, but work fine in another, due to slight variations in the laser position. I have 4 diffferent BD and 2 different DVD drives set up to try disks in, if cleaning doesn't work.