"Hail Caesar" fails to save, using v 1.10.2 on macOS 10.12

[neverman]

MakeMKV v1.10.2 darwin(x86-release) started
Optical drive "DVD+R-DL MATSHITA DVD-R UJ-898 HC10d" opened in OS access mode.
Optical drive "BD-RE MATSHITA BD-MLT UJ260AF 1.00d" opened in OS access mode.
Using direct disc access mode
Title #1 has length of 3 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #2 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #3 was added (20 cell(s), 1:41:59)
Title #4 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #4/1 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #4/2 has length of 15 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #4/3 has length of 15 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #4/4 has length of 15 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #6 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #6/1 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #6/2 has length of 10 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #6/3 has length of 10 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #6/4 has length of 10 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #7 has length of 6 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #8 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #8/1 has length of 1 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #9 has length of 34 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #10 has length of 35 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #11 has length of 37 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #12 has length of 34 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #13 was added (1 cell(s), 0:04:11)
Title #14 was added (1 cell(s), 0:11:34)
Title #15 was added (1 cell(s), 0:06:22)
Title #16 was added (1 cell(s), 0:06:01)
Title #17 has length of 33 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #18 was added (1 cell(s), 0:02:02)
Operation successfully completed
Saving 1 titles into directory /Users/nyima/Movies
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370780672'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370780672'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370911744'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370911744'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Failed to save title 0 to file /Users/nyima/Movies/title00.mkv
0 titles saved, 1 failed
Saving 1 titles into directory /Users/nyima/Movies
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370911744'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370911744'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370911744'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Failed to save title 0 to file /Users/nyima/Movies/title00.mkv
0 titles saved, 1 failed

[Woodstock]

Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370780672'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370780672'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370911744'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370911744'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'

Your drive is having issues reading the disk - it gets lost when trying to follow the track. At first the read errors are intermittent, as it is able to retry the read and continue, but it stops being intermittent at offset 3371042816, and tosses the track following error.

Cleaning the disk is the place to start, even if it looks pristine.

[neverman]

Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370780672'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370780672'
Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3370911744'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3370911744'
Error 'Scsi error - HARDWARE ERROR:TRACK FOLLOWING ERROR' occurred while reading '/VIDEO_TS/VTS_02_1.VOB' at offset '3371042816'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk1' at offset '3371042816'

Your drive is having issues reading the disk - it gets lost when trying to follow the track. At first the read errors are intermittent, as it is able to retry the read and continue, but it stops being intermittent at offset 3371042816, and tosses the track following error.

Cleaning the disk is the place to start, even if it looks pristine.

Thanks. I actually did clean the disc about 30 minutes ago before I saw your message, noticing there were fingerprints, and tried again now and saved fine! I went to post I was able to save, and saw your message. I usually use my eyeglass cleaner when I have issues.