I had quite an experience with the WD support. Performed various test, got more information.
Fact is: you can NOT take drive out of WD My Book duo OR WD My Book Pro (RAID1 mirrored) and read it in a standard computer ! Stay away from these drives, if you want maximum guaranteed access to your data in case of a problem !
(It’s not even necessarily drive encryption which prevents this, its just something the controller does, according to the support)
If you’re interested: here I posted some more details about my findings with the support:
