Please Help _ Combo Drive

[krates]

I Am Havin Sony Combo Drive It's Now Over 2 Years It Was Runnin Dual Layer And Dvd Very Smoothly But If Any type Dvd Specially Dual Layer Got Even A Scrath It Doesn't Work Please Help

[cynosure]

From my personal experience, the lens of your rom is weak.
Its nothing like it wont read "scrathwaali" CDs but it wont read any CDs(DVDs) which are a bit old or were written using some other burner.
So either go for a lens replacement(primary option) or change your drive.