Dvd burner



[qanda]This thread is about the Plextor PX-740A. Click here to see full specs[/qanda]I need help real bad. My dvd burner will burn dvd/cd, but it will NOT READ ANY
Disc from dvd movies to cd music to installation disc. Every time I put a disc in
the burner it reads it as if its a blank disc. I tried a new burner and the same
thing happens. so did the external usb burner.
I am at witts end.

anybody please help