There are some tips of maintaining the CD ROM drives, which will always work for you:
the first step is you have to clean your CD ROM drive after a specific time period this will keep your drive better to use, you can clean by cloth or some other things.
the second step for this is you have to use your CD ROM drive time to time, because if you will not use them time to time then after some time it will not work properly.
the third and last step is don’t experiment with your CD ROM drive without knowledge of it, this can we harmful for your whole system because all things are connected with each other.