No DVDs working - "Error 'Scsi error - Illegal Request..."

[Saimurai]

Ok so reading through the forum and can't seem to find an answer. None of my DVDs are working. So its not a cleaning/damaged DVD issue here. Any help appreciated. Tried writing to a USB instead of the hard drive, no difference. Happens with all regions of DVDs even though it says "Change drive region or update drive firmware". Can't find driver updates for it either.

Here's the log for a DVD that gets further than any other:

Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06' at offset '1048576'
Using direct disc access mode
Region setting of drive HL-DT-ST:DVD-RW GH41N does not match the region of currently inserted disc, trying to work around...
Drive DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06 has RPC protection that can not be bypassed. Change drive region or update drive firmware from http://tdb.rpc1.org. Errors likely to follow.
Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06' at offset '1048576'
Complex multiplex encountered - 28 cells and 10773 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #1 (1:29:54) was skipped due to navigation error
Failed to open disc
Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06' at offset '1048576'
Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06' at offset '1048576'
Using direct disc access mode
Region setting of drive HL-DT-ST:DVD-RW GH41N does not match the region of currently inserted disc, trying to work around...
Drive DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06 has RPC protection that can not be bypassed. Change drive region or update drive firmware from http://tdb.rpc1.org. Errors likely to follow.
Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'DVD+R-DL HL-DT-ST DVD-RW GH41N PQ06' at offset '1048576'
Complex multiplex encountered - 30 cells and 14015 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #1 was added (30 cell(s), 1:52:13)
Title #2 has length of 35 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #3 has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #4 has length of 5 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Complex multiplex encountered - 2 cells and 368 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #5 was added (2 cell(s), 0:02:57)
Title #6 has length of 53 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #7 has length of 27 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #8 has length of 91 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #9 has length of 19 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #10 has length of 119 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #11 has length of 80 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #12 has length of 31 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #13 has length of 46 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #14 has length of 88 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Complex multiplex encountered - 2 cells and 956 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #15 was added (2 cell(s), 0:07:39)
Complex multiplex encountered - 2 cells and 671 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #16 was added (2 cell(s), 0:05:22)
Complex multiplex encountered - 2 cells and 1139 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #17 was added (2 cell(s), 0:09:06)
Complex multiplex encountered - 2 cells and 873 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #18 was added (2 cell(s), 0:06:59)
Complex multiplex encountered - 2 cells and 2710 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #19 was added (2 cell(s), 0:21:41)
Complex multiplex encountered - 2 cells and 274 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #20 was added (2 cell(s), 0:02:11)
Title #21 has length of 93 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #22 has length of 77 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #23 has length of 106 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #24 has length of 34 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #25 has length of 35 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #26 has length of 51 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Title #27 has length of 59 seconds which is less than minimum title length of 120 seconds and was therefore skipped
Complex multiplex encountered - 2 cells and 582 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.
Title #28 was added (2 cell(s), 0:04:39)
Complex multiplex encountered - 2 cells and 293 VOBUs have to be scanned. This may take some time, please be patient - it can't be avoided.

Then title 29 tries to add and it fails with this lot below over and over:

Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading '/VIDEO_TS/VTS_04_1.VOB' at offset '2048'
Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION'
Failed to open disc

[bunk3m]

Did you ever figure out what was going wrong? Curious if you solved it.

I haven't ripped a DVD for some time and this morning tried and am getting the same error.

Error 'Scsi error - ILLEGAL REQUEST:READ OF SCRAMBLED SECTOR WITHOUT AUTHENTICATION' occurred while reading 'BD-RE TSSTcorp BDDVDW SE-506BB TS00' at offset '1048576'

[Woodstock]

If NO DVDs are working, it's usually the drive, but more likely you have disks that are smudged or scratched. Have you tried cleaning them?

[mechanic57]

Hi,
I am having similar issues with ripping DVD and Blu Ray. The application issues the following error.

MakeMKV v1.16.3 darwin(x64-release) started
Optical drive "BD-RE TSSTcorp BDDVDW SN-506BB SB00d" opened in OS access mode.
Error 'Scsi error - NOT READY:LOGICAL UNIT IS IN PROCESS OF BECOMING READY' occurred while reading 'BD-RE TSSTcorp BDDVDW SN-506BB SB00' at offset '655360'
udf: UDF mount: disc not properly formatted or damaged disc (rootdirs failing)
Error 'Scsi error - NOT READY:LOGICAL UNIT IS IN PROCESS OF BECOMING READY' occurred while reading 'BD-RE TSSTcorp BDDVDW SN-506BB SB00' at offset '32768'
Failed to open disc
This has recently started after several Apple MacOS 11.5 Beta upgrades. I doubt the drive is at fault as I can still RIP Audio CD's without issue.

all help gratefully received.

[mechanic57]

If NO DVDs are working, it's usually the drive, but more likely you have disks that are smudged or scratched. Have you tried cleaning them?

Hi My Drive is fine as I can read and write both CD and DVD or Blu Ray (Data) from MacOS finder. I'm still at a loss as the Blu Ray being read by MakeMKV is a new disc only played once, it played fine on the Denon Pro Blu ray player.

[dcoke22]

On Big Sur (and maybe Catalina) one needs to grant MakeMKV access to removable volumes in System Preferences -> Security & Privacy -> Privacy -> File and Folders.

https://support.apple.com/guide/mac-hel ... a35146/mac