Hey Dave,
MPlayer doesn't work either with encrypted disks here, but unencrypted work fine (CD's and DVD's, not Blu-Ray). In VLC I get this message in the messages window when trying to open an encrypted DVD disc:
dvdnav info: DVD Title: SLAUGHTER
dvdnav info: DVD Serial Number: 306f9d55
dvdnav info: DVD Title (Alternative):
dvdnav info: DVD disk reports itself with Region mask 0x00fe0000. Regions: 01
dvdnav info: Attempting to retrieve all CSS keys
dvdnav info: This can take a _long_ time, please be patient
and it sits forever (well, about an hour before I close it). It seems it doesn't get the 'CSS keys'. No idea where they come from...
BTW - I'm using a newer version 3.0.20:
https://github.com/komh/vlc-os2/releases/tag/3.0.20Regards,