Originally Posted by Hector
Turn off the MD600 on the front panel.
LED on front panel switch turns to blue
Wait until LED on front panel is extinguished.
Turn off power switch on rear panel.
Now safe to remove one disc.
It's important to do all of this. If you understand Carl to mean "just press the button on the front" you'll end up in big trouble. Doing so does not actually turn off the unit, and you can end up confusing it and triggering a rebuild or other problem.

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