I have had an NEC DVD RW 3500 drive in my PC for ~10 months and had no problems until now. It won't play CDs of any sort but, it will play DVDs. It won't record on anything. I have been using Ulead videostudio7 to make DVD movies and also Nero6 for most other recording jobs. All working fine until yesterday. PC supplier gone bust and NEC support useless. Does anyone have a list of things I could try. Have downloaded latest firmware but not installed yet. Is this worth a go?