www.makemkv.com

I have been trying with both 1.7.7 and now 1.7.8 and keep getting this error message:

Error 'Scsi error - MEDIUM ERROR:UNRECOVERED READ ERROR' occurred while reading '/BDMV/STREAM/00001.m2ts' at offset '24832991232'
Error 'Internal error - Operation was cancelled (112)' occurred while reading '/BDMV/STREAM/00001.m2ts' at offset '24832991232'

Any ideas?

It's telling you it can't read the disc.

Blu-ray does not have any protection that can produce read errors.

Your disc is damaged / poorly pressed / dirty, or your drive is failing.