Can't rip from mostly-complete backup

[megukaphii]

Hi,

I've been struggling with this particular disc recently - there are 2 titles that MakeMKV refuses to rip, even using a different drive. I heard that copying the disc, then opening that in MakeMKV can work, and I was able to copy everything except for one .m2ts file which appears to belong to only one of the 2 titles. Personally, I'm okay with not getting the MKV of the second title, as I believe it's just a company logo or some such - but the first title is an episode, so I still want to convert it - however, when I open up the copy, I get the following error:

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Opening files on harddrive at C:/Users/meguk/Desktop/Disc
Loaded content hash table, will verify integrity of M2TS files.
Saved AACS dump file as C:\Users\meguk/.MakeMKV/MKB_v15_Star_Trek_Season_2-_Disc_2_2DF8.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc

I assume this is because it's missing the other stream file, but as I say, I'm not interested in that title. Is there any way to get just the episode file, given I believe I have all the files related to it? Do I just send in the dump file? Thanks for any help!

[Woodstock]

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Saved AACS dump file as C:\Users\[redacted]/.MakeMKV/MKB_v15_Star_Trek_Season_2-_Disc_2_2DF8.tgz
The volume key is unknown for this disc - video can't be decrypted

No, it's because the key isn't known on your system. Was there another error message about not being able to contact HKDATA?

[megukaphii]

Nope, that was the entireity of the log (aside from "MakeMKV v1.17.6 started"). But I was able to rip most of the files from the disc directly with no issue, so I imagined it must have had no issues with getting the key.

[megukaphii]

Okay, I managed to successfully open up the disc backup by opening the discatt.dat file, instead of the index.bdmv file. That said, I still wasn't able to rip the two remaining files as it said the stream was corrupted or invalid, so that's kind of a pain.