Attempted to run DVD (purchased, original owner) of Dark Knight.
DVD drive shows drive activity light. VLC shows incrementing memory usage in Task Mgr.
VLC shows on desktop.
But no video, no sound.
Uninstalled VLC 2.0.1
Installed VLC 1.1.9
Runs DVD with no problems.
I did test other DVDs under 2.0.1 and they ran OK. All media original purchased DVDs.