NEC DVD RW ND 3500AG Problems

I buyed the NEC DVD RW (ND 3500AG) last christmas and it had done his work well but one day the burning speed start to descend from 12min to 30min(full DVDs) and some months later it couldn’t read CDs or DVDs. It could be broken??I need to update the drivers??Help plz :frowning:


PD: Sry but my english isn’t the best :doh: