One small detail i discoverd some months ago might be of interest. This laptop I am typing this from right no, the DVD drive cannot read cd's, it chokes trying to, keeps trying and fails, and a friend of mine (who specialises in optical media) explained to me that most are unaware DVD optical drives have 2 lasers, one for cd, one for dvd, and the reason my cds were not reading was likely the cd laser was failing. Attempts to clan it made no diff, plus this revelation did explain a lot. It is always possible you maybe suffering from the same/opposite thing. Hardware issue. Just a thought.