When I insert an audio CD into my iMac, it automatically starts playing

Question

When I insert an audio CD into my iMac, it automatically starts playing, and I can't figure out why, nor how to stop this behavior. When I click in the upper right corner of my screen where it says "Finder", it shows the Finder as the only application running, and yet SOMETHING must be causing the CD to play. If it is an Extension that is being loaded, is it possible to terminate the Extensions one by one without restarting the computer to see which one is playing the CD?
Is the OS9.1 operating system supposed to automatically play audio CD's when they are inserted into the iMac? Or could it be an Extension that is doing it?And if so, why is no means provided to actually CONTROL the playing of the CD (such as a control panel with PLAY, STOP, SKIP, etc. buttons)?
On a PC, I can press Control/Alt/Delete to bring up the "Task List" that will show me ALL applications and processes currently running, and then terminate apps and processes one by one without having to restart the computer to see which one is playing the CD. Is there an equivalent way to display this information on an iMac that will show me which application or process or extension might be causing the audio CD to play, and allow me to terminate them one by one without restarting the computer until I can see which one is the "problem"?
Jerry

Answer 1

Hi, Jerry -
Welcome to Apple's Discussions.
Finder uses QuickTime in the background to do that, hence no specific app is shown in the Application menu (the far right item in the main menu bar) in addition to Finder.
To unset automatic playing of CDs (and DVDs) -
Open the QuickTime Settings control panel (Apple menu > Control Panels > QuickTime Settings).
In that control panel, select AutoPlay from the pulldown menu in the control panel. Uncheck both the items shown in the new window. Close the control panel.
No restart should be needed in order to make the change effective.
Doing this will also guard against the (now ancient) AutoPlay virus, which could still be lurking somewhere on the net.