WYSIWYG -

The "close button" may be in a "Safely Remove Hardware" icon in SysTray, on the toolbar at the bottom right of the screen. When you connect something like your digital camera for downloads, or connect an external hard drive, it appears there. You do need to go there and "turn it off" before you unplug it.

I would expect that if you "mount" your CD drive as a "read/write" it probably would appear in the same place.

The "purpose" of the Safe Remove is to terminate any controller that may be running before the hardware is removed and the controller gets confused.

If your CD started working for you now, chances are that it didn't restart as a "removable" device with a re-boot, and there won't be anything in the "Remove" box if it's not running now. If there are no "removables" running, the box may not even appear.

John