Hi,
I'm using El Capitan on OS X 10.11.6
I don't get these errors when using Makemkv 1.15.3, but on 1.16.1, I can't use Makemkv:
. . .
Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - AUTHENTICATION FAILURE' occurred while issuing SCSI command A30..00200740100720..09F4EDF42236C909F7CF6A9BC165D6E9DF0 to device 'IoKit:/IOBDServices/32B2803C'
Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - KEY NOT ESTABLISHED' occurred while issuing SCSI command AD010..080002400 to device 'IoKit:/IOBDServices/32B2803C'
Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - AUTHENTICATION FAILURE' occurred while issuing SCSI command A30..00200740100720..06FFD5523F49C275EF79EAB76FE56320632 to device 'IoKit:/IOBDServices/32B2803C'
Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - KEY NOT ESTABLISHED' occurred while issuing SCSI command AD010..080002400 to device 'IoKit:/IOBDServices/32B2803C'
Can't read AACS VID from disc - most likely current AACS host certificate is revoked by your drive
. . .
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc
Problem with v1.16.1 on OS X
Re: Problem with v1.16.1 on OS X
I have the same problem and posted about it here: https://www.makemkv.com/forum/viewtopic.php?f=8&t=24726