I've found that BLU-RAY.com does not work on any Title (Die Hard, Dune...). It could be an issue with Region 1 since that's where I am. At any rate I've tried with the above Titles one at a time as well as within a Chain and it always fails. No modifications to have been made to the Script or the user configurable parameters.
Any questions or potential solutions are welcome.
Please forgive me for cross posting. I wasn't sure until after I posted in the General Bug Reports section that this is the appropriate place for Script bugs.