DVD always on

Hello to everyone.

I have an HP Laptop and the last couple of days the light or led of my
DVD/CD-R drive is always flashing, until i put any cd or dvd the light goes
off, but if the drive is empty the led flash again.

If i log with another username the drive also is off.

Also if i go to setu of the laptop, the led es not flashing

Anyone have any idea

Thanks