Matshita UJ 850S not reading DVDs

vbimport

#1

[qanda]This question is published in the hardware section for the Matshita UJ-850S. Click here to view full specs.[/qanda]My Matshita DVD RAM UJ 850S ATA Device is reading CDs perfectly well,but is not reading DVDs, not even blank ones !!! Can anyone please help me out with the problem ?