I have just asked the two IT guys in my office about how to clean my DVD drives (they also burn dvds as well as play them, although not any more as they've stopped working) which i believe may be filthy.
One has said try a dvd lens cleaner.
The other has said avoid a dvd lens cleaner at all cost and put a vacuum cleaner on 'blow' (my dyson doesn't do this) and blow all the dust out.
Before I bang their heads together, what do you do?