Hi, while casually browsing through HD/System/Library/Components/CoreAudio.component/Contents/Resources/SystemSounds/system, the other day I noticed that there appear to be some system sounds that I never hear. Like Volume 'Unmount.aif' for example. I get the Volume Mount.aif sound but not the other one. Same with 'media keys.aif'. There are other sounds in the SystemSounds/finder too like 'move to trash.aif', that I never hear. Althought the 'empty trash.aif' is also in that folder and I hear normally. There are other oddities too like the familar 'drag to trash.aif' is not in the same folder as ''empty trash.aif' but is instead in the 'dock' folder along with the 'poof item off dock.aif'. Can anyone give me some insight into why many of these system sounds never play?