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Hello, I am receiving this error from a blu-ray image. Not sure what that error means. Perhaps the image is corrupted?

Saving 2 titles into directory /Users/User/Movies/Some_Bluray
Error 'Posix error - Input/output error' occurred while reading '/BDMV/STREAM/00002.m2ts' at offset '13603885056'
Failed to save title 1 to file
/Users/User/Movies/Some_Bluray/some_chapter_t01.mkv
1 titles saved, 1 failed

posix errors are one way of reporting that the drive has a problem reading the disk. On Windows, we get "SCSI error" messages instead.

Can be caused by dirty or scratched disks, or problems with the drive itself.

Is it a drive built into the computer, or an external? If it is external, is it powered separately, or does it get its power from the USB connection?

I have a disc image so I'm guessing that one of the m2ts files might be corrupted. It's able to make mkvs out of other chapters on the disc. Is there software that can analyze and repair such problems?