When I play Disney's "Beauty and the Beast" Blu-ray with PowerDVD 10 logged in with an administrator account, it seems to work properly. When I switch users to a non-administrator user on the same system with the same Blu-ray disc, then PowerDVD 10 reports no disc in drive D:.
Test System: CyberLink PowerDVD 10.0.3507.52, Microsoft Windows 7 Professional Service Pack 1 x64