Lenovo y410
DVD drive problem

I have lenovo y 410. my optical drive can only detect original cd or dvd. but it could detect any thing for 1 yr after its purchase. now no dvd or cd written from other computer can be detected. needless to say that it also can not write any thing. it gives power calibration error while writing. my optical drive is slot in type and it is matshita dvd ram uj85 js. please help me and tell what to do