Earlier today, I had one of those classic ‘doh!’ moments.
I had a 5.25in DVD/RW drive externally connected to a virus-infected Windows laptop via USB (running ClamAV if you’re interested).
For some unfathomable reason, I moved the drive with my hand while it was spinning, imparting just a little tilt to it. Even as I did so I knew the result which was about to happen. The CD was already tilting off it’s normal axis of rotation with relation to the drive, trying to maintain it’s original orientation in space due to gyroscopic precession. The inevitable grinding noise indicated that the CD had run out of room to maneuver and collided with the optics / drive internals.
The level of vibration which continued until I yanked out the power was rather impressive; I was glad of the aluminium casing containing the fast moving disc and motor.
I managed to pull the CD tray out and took hold of a CD which was now quite hot around the edges and promptly cut myself on the ground-down and sharpened rim. The drive itself, of course, had ceased to function as a drive of any usable sort.
The moral here is: “Don’t break your own rules”
(Or just don’t be an idiot 😉 )