A week ago I shut my laptop off and I realised I'd left a DVD-RW in the disc drive. I turned it back on and removed it a few minutes later. Last night I put the same DVD-RW in the drive which I hadn't used for a week, and it s now making a much louder noise than normal, a clicking grinding sort of noise. I tested it to see if it was still working by burning a few small files onto the disc. It's done this okay but it was so noisy. Have I damaged the drive? Does anyone have any advice? Thanks