Help Please! Nec Dvd+rw Nd-5100a

I have a problem. I have a Dell Inspiron 8600 laptop with NEC DVD+RW ND-5100A burner.

The problem is that it used to read and burn dvd’s in the past but now I can only read and write CD’s. Everytime I use a DVD it doesn’t appear it’s like the drive was empty. The moment I put in the DVD, it tries to read it but after a few seconds the drives stop trying and stays like that, like nothing was in the drive.

What can I do?

tnx

You can update your firmware… http://etna.rpc1.org/nec/index.html but be aware that this will void the drives warrenty

Also if you do, make sure you choose the correct firmware, otherwise the drive may cease working

What is flashing a drive? and is there another way, less drastic to fix this???