NEC dvd doesn't read discs



hello all,

My DVD rw drive has suddenly stopped reading discs, it just shows a blank when I put one in and “explore” it. tonight I have tried about 10 times and only once has it read the contents. It is an NEC nd-2500A. I have tried with various discs

Any ideas?



Does it make a difference what type of disc?

purchased DVD, burnt DVD, data CD, audio CD ?