Blu-ray backup button grayed out

[fifty15]

Hi,

I tried to back up four Blu-ray Discs my family sent to me using MakeMKV, and it fails on exactly one of them (for the other three, backup succeeds with good decryption). The backup button for that particular disc is grayed out, and my guess is that's because the disc type is recognized as "data" instead of "Blu-Ray". What can I do? I've seen some posts saying you should press the big backup button before inserting a disc -- but that doesn't work as the blu-ray drive won't be recognized until I insert a disc.

Here's a copy of the log file -- it's pretty short.

******
Debug log started at Sat Dec 28 20:48:48 2019 , written by MakeMKV v1.14.7 darwin(x64-release)
Using 262272KB for read cache.
001005:0000 MakeMKV v1.14.7 darwin(x64-release) started
001004:0000 Debug logging enabled, log will be saved as /Users/xxxxxx/MakeMKV_log_1.txt
002010:0000 Optical drive "BD-RE PIONEER BD-RW BDR-XD05 3.01d" opened in OS access mode.
001003:0020 DEBUG: Code 0 at 4XBG;~0Ll25Imp3O/:213130329
001003:0020 DEBUG: Code 0 at 4XBG;~0Ll25Imp3O/:213130329
No SDF v067: PIONEER_BD-RW___BDR-XD05_3.01_QFDL114497UC
SDF id v067: PIONEER_BD-RW___BDR-XD05_3.01_QFDL114497UC

[Grauhaar]

the disc type is recognized as "data" instead of "Blu-Ray"

Can be the disc or the drive cannot interpret the disc content. Check it on an other drive if the disc is identified by the OS as Blu-ray.

[fifty15]

Thanks. Unfortunately I don't have easy access to another drive. The drive has been working great so far, so I bet disc error is more likely...