Hello, as I said I have an CD and 56x for a few months ago I did not read anything, put a cd and stays there, as if not gotten anything, and I hear a tock, as it tries to read and workers with a sound the thing is opened it and revise it, I'm not very skilled but somewhat try to clean the reader, but continues, as long as I have, like about 2-3 years and is already in his time to die but if I could give some around, or something you do to make your stay lengthens life… well, thanks in advance.