www.makemkv.com

Format: Box set, Color, Dolby, NTSC, Widescreen
Language: English
Subtitles: English
Region: Region 1
Aspect Ratio: 1.66:1
Number of discs: 3
Rated: NR (Not Rated)
Studio: PBS (DIRECT)
DVD Release Date: January 28, 2014
~~~~~
It seems MakeMKV is not reading the titles properly, nor will it decrypt all of the tiles properly. This is on all 3 discs. I have the following information for each disc:
a) MakeMKV's initial screen shot of loaded disc,
b) Screen shot of MakeMKV's title listing after reading a disc,
c) Screen shot of working folder after attempted extraction,
d) Text file of MakeMKV's report log in debug mode,
e) Text file of complete MakeMKV log.

"Sorry, the board attachment quota has been reached."

Item d) above for each disc will be posted as comments.

Please PM me if there is another way I may provide zip files containing the screenshots and complete MakeMKV program log for each disc. The additional information might help to solve what looks like a newish copy protection scheme.

MakeMKV screen log for Disc 1
~~~~~~~~~~~~~~~~~~
MakeMKV v1.9.1 win(x64-release) started
Debug logging enabled, log will be saved as C:\Users\Aecad/MakeMKV_log.txt
Using direct disc access mode
Title #3 was added (6 cell(s), 0:49:36)
Title #5 was added (1 cell(s), 0:01:41)
Title #6 has length of 5 seconds which is less than minimum title length of 15 seconds and was therefore skipped
Title #8 has length of 5 seconds which is less than minimum title length of 15 seconds and was therefore skipped
Title #11 was added (7 cell(s), 0:26:05)
Title #13 was added (6 cell(s), 0:49:36)
Title #15 was added (1 cell(s), 0:01:41)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Title #18 was added (6 cell(s), 0:49:36)
Title #20 was added (1 cell(s), 0:01:41)
Title #21 was added (8 cell(s), 0:40:12)
Title #23 was added (6 cell(s), 0:49:36)
Title #25 was added (1 cell(s), 0:01:41)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Title #28 was added (6 cell(s), 0:49:36)
Title #30 was added (1 cell(s), 0:01:41)
Title #31 was added (7 cell(s), 0:26:05)
Title #33 was added (6 cell(s), 0:49:36)
Title #35 was added (1 cell(s), 0:01:41)
Title #38 was added (6 cell(s), 0:49:36)
Title #40 was added (1 cell(s), 0:01:41)
Title #43 was added (6 cell(s), 0:49:36)
Title #45 was added (1 cell(s), 0:01:41)
Title #46 was added (10 cell(s), 1:10:12)
Title #48 was added (6 cell(s), 0:49:36)
Title #50 was added (1 cell(s), 0:01:41)
Title #53 was added (6 cell(s), 0:49:36)
Title #55 was added (1 cell(s), 0:01:41)
Title #56 was added (6 cell(s), 0:11:20)
Title #58 was added (6 cell(s), 0:49:36)
Title #60 was added (1 cell(s), 0:01:41)
Title #63 was added (6 cell(s), 0:49:36)
Title #65 was added (1 cell(s), 0:01:41)
Title #66 was added (9 cell(s), 0:52:48)
Title #68 was added (6 cell(s), 0:49:36)
Title #70 was added (1 cell(s), 0:01:41)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Title #73 was added (6 cell(s), 0:49:36)
Title #75 was added (1 cell(s), 0:01:41)
Title #76 was added (10 cell(s), 1:10:12)
Title #78 was added (6 cell(s), 0:49:36)
Title #80 was added (1 cell(s), 0:01:41)
Title #83 was added (6 cell(s), 0:49:36)
Title #85 was added (1 cell(s), 0:01:41)
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 3 in VTS 17 is equal to title 3 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 5 in VTS 17 is equal to title 5 and was skipped
Title 1 in VTS 7 is equal to title 1 and was skipped
Title 1 in VTS 14 is equal to title 1 and was skipped
Operation successfully completed
Saving 7 titles into directory D:/Full Disc/Downton Abbey S4 D1
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D1/title00.mkv' (title #1)
AV sync issue in stream 1 at 0:49:35.756 with duration of 12.116ms : short audio gap was removed, audio skew is -12.116ms
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_07_1.VOB' at offset '16625664'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_07_1.VOB' at offset '16625664'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8118 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error while reading input
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D1/title02.mkv' (title #3)
AV sync issue in stream 0 at 0:00:26.359 : video frame timecode differs by +77.861s
Failed to save title 2 to file D:/Full Disc/Downton Abbey S4 D1/title02.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_09_1.VOB' at offset '16625664'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_09_1.VOB' at offset '16625664'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8118 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error while reading input
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D1/title03.mkv' (title #4)
AV sync issue in stream 0 at 0:00:26.359 : video frame timecode differs by +77.861s
Failed to save title 3 to file D:/Full Disc/Downton Abbey S4 D1/title03.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_14_1.VOB' at offset '16625664'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_14_1.VOB' at offset '16625664'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8118 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error while reading input
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D1/title04.mkv' (title #5)
AV sync issue in stream 0 at 0:00:26.359 : video frame timecode differs by +77.861s
Failed to save title 4 to file D:/Full Disc/Downton Abbey S4 D1/title04.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_16_1.VOB' at offset '16625664'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_16_1.VOB' at offset '16625664'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8118 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error while reading input
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D1/title05.mkv' (title #6)
AV sync issue in stream 0 at 0:00:26.359 : video frame timecode differs by +77.861s
Failed to save title 5 to file D:/Full Disc/Downton Abbey S4 D1/title05.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_18_1.VOB' at offset '16625664'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_18_1.VOB' at offset '16625664'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8118 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error while reading input
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D1/title06.mkv' (title #7)
AV sync issue in stream 0 at 0:00:26.359 : video frame timecode differs by +77.861s
Failed to save title 6 to file D:/Full Disc/Downton Abbey S4 D1/title06.mkv
2 titles saved, 5 failed

MakeMKV screen log for Disc 2
~~~~~
MakeMKV v1.9.1 win(x64-release) started
Debug logging enabled, log will be saved as C:\Users\Aecad/MakeMKV_log.txt
Using direct disc access mode
Title #3 was added (6 cell(s), 0:48:54)
Title #4 was added (6 cell(s), 0:49:37)
Title #6 was added (1 cell(s), 0:01:41)
Title #7 has length of 5 seconds which is less than minimum title length of 15 seconds and was therefore skipped
Title #9 was added (1 cell(s), 0:19:00)
Title #17 was added (1 cell(s), 0:01:41)
Title #23 was added (1 cell(s), 0:01:41)
Title #29 was added (1 cell(s), 0:01:41)
Title #30 was added (8 cell(s), 0:19:40)
Title #35 was added (1 cell(s), 0:01:41)
Title #36 was added (11 cell(s), 0:51:14)
Title #41 was added (1 cell(s), 0:01:41)
Title #42 was added (10 cell(s), 0:38:56)
Title #47 was added (1 cell(s), 0:01:41)
Title #48 was added (11 cell(s), 0:51:14)
Title #53 was added (1 cell(s), 0:01:41)
Title #54 was added (7 cell(s), 0:10:24)
Title #59 was added (1 cell(s), 0:01:41)
Title #60 was added (5 cell(s), 0:01:44)
Title #65 was added (1 cell(s), 0:01:41)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Cells 7-7 were removed from title end
Title #66 was added (5 cell(s), 0:49:30)
Title #68 was added (6 cell(s), 0:48:54)
Title #69 was added (6 cell(s), 0:49:37)
Title #71 was added (1 cell(s), 0:01:41)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Cells 7-7 were removed from title end
Title #72 was added (5 cell(s), 0:49:30)
Title #74 was added (6 cell(s), 0:48:54)
Title #75 was added (6 cell(s), 0:49:37)
Title #77 was added (1 cell(s), 0:01:41)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Cells 7-7 were removed from title end
Title #78 was added (5 cell(s), 0:49:30)
Title #83 was added (1 cell(s), 0:01:41)
Title #89 was added (1 cell(s), 0:01:41)
Title #90 was added (12 cell(s), 0:51:19)
Title 3 in VTS 18 is equal to title 3 and was skipped
Title 3 in VTS 18 is equal to title 3 and was skipped
Title 4 in VTS 18 is equal to title 4 and was skipped
Title 4 in VTS 18 is equal to title 4 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 6 in VTS 18 is equal to title 6 and was skipped
Title 1 in VTS 11 is equal to title 1 and was skipped
Title 1 in VTS 16 is equal to title 1 and was skipped
Title 1 in VTS 16 is equal to title 1 and was skipped
Operation successfully completed
Saving 11 titles into directory D:/Full Disc/Downton Abbey S4 D2
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D2/title00.mkv' (title #1)
AV sync issue in stream 1 at 0:48:54.047 with duration of 31.783ms : short audio gap was removed, audio skew is -31.783ms
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D2/title01.mkv' (title #2)
AV sync issue in stream 1 at 0:49:35.712 with duration of 44.116ms : audio gap - 1.378 missing frame(s)
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_04_1.VOB' at offset '16750592'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_04_1.VOB' at offset '16750592'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8179 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at W'$mVX$:bonByR?4^QJ:29396414
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_04_1.VOB' at offset '16750592'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_04_1.VOB' at offset '16750592'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8179 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:213131893
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:121263406
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:29393907
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(2,true)
Failed to save title 3 to file D:/Full Disc/Downton Abbey S4 D2/title03.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_10_1.VOB' at offset '37310464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_10_1.VOB' at offset '37310464'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18218 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(1,false)
Failed to save title 4 to file D:/Full Disc/Downton Abbey S4 D2/title04.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37310464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37310464'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18218 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(1,false)
Failed to save title 5 to file D:/Full Disc/Downton Abbey S4 D2/title05.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_12_1.VOB' at offset '37310464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_12_1.VOB' at offset '37310464'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18218 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(1,false)
Failed to save title 6 to file D:/Full Disc/Downton Abbey S4 D2/title06.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_14_1.VOB' at offset '37310464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_14_1.VOB' at offset '37310464'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18218 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(1,false)
Failed to save title 7 to file D:/Full Disc/Downton Abbey S4 D2/title07.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37310464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37310464'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18218 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(1,false)
Failed to save title 8 to file D:/Full Disc/Downton Abbey S4 D2/title08.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_18_1.VOB' at offset '37310464'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_18_1.VOB' at offset '37310464'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18218 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(1,false)
Failed to save title 10 to file D:/Full Disc/Downton Abbey S4 D2/title10.mkv
4 titles saved, 7 failed

MakeMKV screen log for Disc 3
~~~~~
MakeMKV v1.9.1 win(x64-release) started
Debug logging enabled, log will be saved as C:\Users\Aecad/MakeMKV_log.txt
Using direct disc access mode
Title #4 was added (8 cell(s), 0:13:24)
Title #5 was added (7 cell(s), 0:12:19)
Title #6 was added (1 cell(s), 0:01:41)
Title #7 was added (4 cell(s), 0:09:20)
Title #8 was added (1 cell(s), 0:00:32)
Title #9 has length of 5 seconds which is less than minimum title length of 15 seconds and was therefore skipped
Title #10 was added (1 cell(s), 0:20:45)
Title #11 has length of 5 seconds which is less than minimum title length of 15 seconds and was therefore skipped
Title #19 was added (1 cell(s), 0:01:41)
Title #21 was added (1 cell(s), 0:00:32)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Cells 8-8 were removed from title end
Title #22 was added (6 cell(s), 1:09:49)
Title #27 was added (1 cell(s), 0:01:41)
Title #29 was added (1 cell(s), 0:00:32)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Cells 8-8 were removed from title end
Title #30 was added (6 cell(s), 1:09:49)
Title #33 was added (8 cell(s), 0:13:24)
Title #34 was added (7 cell(s), 0:12:19)
Title #35 was added (1 cell(s), 0:01:41)
Title #36 was added (4 cell(s), 0:09:20)
Title #37 was added (1 cell(s), 0:00:32)
DEBUG: Code 10551311 at 2v\x6:dUo2"1l{@\:213142128
DEBUG: Code 0 at 2v\x6:dUo2"1l{@\:213143301
DEBUG: Code 0 at <|C!&I&2z{,(s O7|P:29394229
CellWalk algorithm failed (structure protection is too tough?), trying CellTrim algorithm
Cells 1-1 were removed from title start
Cells 8-8 were removed from title end
Title #38 was added (6 cell(s), 1:09:49)
Title #41 was added (8 cell(s), 0:13:24)
Title #42 was added (7 cell(s), 0:12:19)
Title #43 was added (1 cell(s), 0:01:41)
Title #44 was added (4 cell(s), 0:09:20)
Title #45 was added (1 cell(s), 0:00:32)
Title #46 was added (5 cell(s), 0:01:24)
Title #51 was added (1 cell(s), 0:01:41)
Title #53 was added (1 cell(s), 0:00:32)
Title #54 was added (5 cell(s), 0:01:24)
Title #59 was added (1 cell(s), 0:01:41)
Title #61 was added (1 cell(s), 0:00:32)
Title #67 was added (1 cell(s), 0:01:41)
Title #69 was added (1 cell(s), 0:00:32)
Title #75 was added (1 cell(s), 0:01:41)
Title #77 was added (1 cell(s), 0:00:32)
Title #78 was added (11 cell(s), 0:54:02)
Title #83 was added (1 cell(s), 0:01:41)
Title #85 was added (1 cell(s), 0:00:32)
Title #86 was added (12 cell(s), 1:10:53)
Title 4 in VTS 14 is equal to title 4 and was skipped
Title 4 in VTS 14 is equal to title 4 and was skipped
Title 5 in VTS 14 is equal to title 5 and was skipped
Title 5 in VTS 14 is equal to title 5 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 6 in VTS 14 is equal to title 6 and was skipped
Title 7 in VTS 14 is equal to title 7 and was skipped
Title 7 in VTS 14 is equal to title 7 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 8 in VTS 14 is equal to title 8 and was skipped
Title 1 in VTS 14 is equal to title 1 and was skipped
Title 1 in VTS 14 is equal to title 1 and was skipped
Title 1 in VTS 11 is equal to title 1 and was skipped
Operation successfully completed
Saving 10 titles into directory D:/Full Disc/Downton Abbey S4 D3
Track #2 turned out to be empty and was removed from output file
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_03_1.VOB' at offset '16746496'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_03_1.VOB' at offset '16746496'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8177 at y6*vfE*%I]?KB[pfW2x&:29393286
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_03_1.VOB' at offset '16746496'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_03_1.VOB' at offset '16746496'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 8177 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at W'$mVX$:bonByR?4^QJ:29396414
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:213131893
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:121263406
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:29393907
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(2,true)
Failed to save title 5 to file D:/Full Disc/Downton Abbey S4 D3/title05.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37441536'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37441536'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18282 at y6*vfE*%I]?KB[pfW2x&:29393286
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37441536'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37441536'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18282 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at W'$mVX$:bonByR?4^QJ:29396414
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37441536'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_11_1.VOB' at offset '37441536'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18282 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:213131893
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:121263406
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:29393907
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(2,true)
Failed to save title 7 to file D:/Full Disc/Downton Abbey S4 D3/title07.mkv
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37441536'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37441536'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18282 at y6*vfE*%I]?KB[pfW2x&:29393286
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37441536'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37441536'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18282 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at W'$mVX$:bonByR?4^QJ:29396414
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37441536'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/VIDEO_TS/VTS_15_1.VOB' at offset '37441536'
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:121263038
DEBUG: Code 0 at _}>2]/?KC0L=d8 `"oE:121261750
DEBUG: Code 0 at y6*vfE*%I]?KB[pfW2x&:213130559
DEBUG: Code 18282 at y6*vfE*%I]?KB[pfW2x&:29393286
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:213131893
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:121263406
DEBUG: Code 0 at 7k]hu60*4|`Ik;U)a:29393907
DEBUG: Code 0 at {Sd%j8Wv.P@.V@bGTwF]7:29399013
LIBMKV_TRACE: Exception: Error in p->FetchFrames(2,true)
Failed to save title 8 to file D:/Full Disc/Downton Abbey S4 D3/title08.mkv
AV synchronization issues were found in file 'D:/Full Disc/Downton Abbey S4 D3/title09.mkv' (title #10)
AV sync issue in stream 0 at 0:00:25.975 : video frame timecode differs by +25.492s
AV sync issue in stream 0 at 0:00:31.431 : video frame timecode differs by +25.492s
AV sync issue in stream 0 at 0:00:43.693 : video frame timecode differs by +25.492s
AV sync issue in stream 1 at 0:00:25.856 with duration of 1643.07ms : audio gap - 51.345 missing frame(s)
AV sync issue in stream 0 at 0:00:46.413 : video frame timecode differs by +25.492s
AV sync issue in stream 0 at 0:00:53.920 : video frame timecode differs by +25.475s
AV sync issue in stream 0 at 0:00:58.925 : video stream has 68 frames with invalid timecodes
AV sync issue in stream 1 at 0:01:19.245 with duration of 20.32s : 635 overlapping frame(s) dropped at segment boundary
AV sync issue in stream 1 at 0:01:19.245 with duration of 18.466ms : encountered overlapping frame, audio skew is +18.466ms
AV sync issue in stream 2 at 0:01:36.329 with duration of 7.896s : 2 overlapping frame(s) dropped at segment boundary
AV sync issue in stream 1 at 1:10:54.650 with duration of 26.4ms : short audio gap was removed, audio skew is -26.4ms
7 titles saved, 3 failed

When you see things like this:
There isn't much MakeMKV can do to work around it. Your drive says it can't read the disks. Clean them.

Woodstock wrote:Your drive says it can't read the disks. Clean them.

Thanks for your reply. These are brand new DVDs. It is curious that the same type of problem appears to exist on all three discs. There were other reports of a similar problem by others. I made an attempt to provide more information than they did.

It is not impossible to get three badly-pressed disks in a single package. It is also not impossible for there to be residue on the disks from packaging. And BDs are much more sensitive to finger prints and such, in my experience, than DVDs ever were, because of the increased data density.

If they're new, exchanging them may be your best option. I've had bad disks arrive from Amazon. I had to return a large DVD set for replacement because one disk out of thirty was bad, and found that the replacement set had the SAME ERROR on that same disk... A bad pressing. Rather than fight it, I rented the bad disk from Netflix, and ripped that in place of the one I owned... it was from a different pressing, and the disk was readable.

Woodstock wrote:It is not impossible to get three badly-pressed disks in a single package. It is also not impossible for there to be residue on the disks from packaging. And BDs are much more sensitive to finger prints and such, in my experience, than DVDs ever were, because of the increased data density.

If they're new, exchanging them may be your best option. I've had bad disks arrive from Amazon. I had to return a large DVD set for replacement because one disk out of thirty was bad, and found that the replacement set had the SAME ERROR on that same disk... A bad pressing. Rather than fight it, I rented the bad disk from Netflix, and ripped that in place of the one I owned... it was from a different pressing, and the disk was readable.

Search for other reports about Downton Abby Season Four.
The odds of two different sets of discs on different drives on different computers all exibiting the same behavior ...

Mine are messed up too.

It's their copy protection. The discs work fine in the regular DVD players and even play fine with dvd player software like VLC. They introduce deliberately defective sectors and title info to confuse those "evil pirate programs".

An old version of DVDFab can pull the info off these discs but the first episode on each disc is corrupted and missing segments.

The newer versions OneClickDVDCopyPro can properly decrypt the discs.

So, it *IS* how MakeMKV sees the discs, and it has to deliberately ignore certain portions of the data to work correctly. Don't ask me WHAT portions of the data it has to ignore as I don't know.

For those having problems with Season 4, put your disk in a player and write down the Title and Ch numbers for each part from your player.

Open makemkv using manual mode. To access this feature you will need to set the expert flag in preferences. The disk will spin up and a menu will appear asking you to enter the title and chapter numbers above.

Using this method I was able to get all parts.

Mithrinder wrote:For those having problems with Season 4, put your disk in a player and write down the Title and Ch numbers for each part from your player.

Open makemkv using manual mode. To access this feature you will need to set the expert flag in preferences. The disk will spin up and a menu will appear asking you to enter the title and chapter numbers above.

Using this method I was able to get all parts.

I'm not exactly sure how to do this but I will see if I can figure it out. I'm having problems with Season 2-6. Season 1 ripped with no issues.... At least that I know of.

Mithrinder wrote:For those having problems with Season 4, put your disk in a player and write down the Title and Ch numbers for each part from your player.

Open makemkv using manual mode. To access this feature you will need to set the expert flag in preferences. The disk will spin up and a menu will appear asking you to enter the title and chapter numbers above.

Using this method I was able to get all parts.

This worked like a charm. Thanks Mithrinder!