DVD Rom reads Cd's But Wont Read DVD's

[JamesTryForYou]

Hii ppl i am using Lite -On LH-20A1P....

it's happening from few months that my DVD Writer..reads all cd's fine but it fails to recognize dvd's(This months Digit DVD's for instance)...

Please help me out....

 

[JamesTryForYou]

First OF all sorry for double post....

Please some one help me out...