Not that I have ever encountered, the drives are designed with an average MTBF of 100,000 hours or so... by the time it wears out you'll have upgraded to a new blue-ray dual layer burner. If its gonna fail, its gonna fail. Not using it will just delay the inevitable. You got a bad one and its time to head to hot deals forum to find a free after rebate burner.
In my experience the eject mechanism fails 20 times more often then the laser.