Hello,
I've got exactly the same issue with the Game of Thrones season 5. All other seasons worked fine. Read a lot inside the whole forum, it's definitly the CUDA issue, after set everything to "software" it's working fine. Did a cross test with Casino Royal BluRay disc just to confirm (switched back to CUDA support, no files no ripping, in software mode it worked great).
Current DVDfab ver: 10.0.2.2
Current Nvidia driver: 378.66
Will try the test version now and let you know...
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Update:
I'm sorry to tell you that i's not working with this version. Same behavior, with software it's working, with CUDA it's finishing within 10 seconds and no file is created. Found this in the log files:
0m 10.25s: --- connect filter failed(module_hwvtranscode_cuda init_cuda_trans_failed) ---
Hope that helps...if I can do more please let me know. I'm very interested in to resolve this issue. Btw, I tried two other Nvidia driver (376.33 & 378.49) none of them worked.