there are 2 laser lenses in that unit one for cd and one for dvd you could try a laser cleaning kit if that doesnt work probably need to replace with new cd dvd drive unit they do go bad and there pretty cheap to replace
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.