Running the latest (27-inch, Mid 2011) iMac here with 10.7.2, Firefox 8.0 (64-bit), VLC 1.1.12 (64-bit). I have digital out (TOSLINK) connected. 'Use S/PDIF when available' is checked in VLC prefs. I also have Perian 1.2.3 with 'Multi-Channel Output' selected (additional custom options through Termi...