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I'm having issues with Dracula and Frankenstein in the 4K 'Classic Monsters' set...but have successfully ingested The Invisible Man and The Wolf Man. Its sporadic whether the disc can get mounted and when it does, it get's far along on each and then fails...any ideas? Are these 100GB discs AND using...

Getting the same error on my US 4K UHD copy of 'Glory'...anyone develop a workaround/fix or know what to check? Thx!

UPDATE: Well, mysteriously, 3rd attempt seems to have worked. Strange. Now I just need to figure out my Vertigo and Black Hawk Down UHD fails...