Hello AD.com, I've been using the same blank media for a year. All of a sudden I'm unable to use DVD+RW's on my drive. I thought it might be the software, so I purchased another one. It still doesn't work. I have a Sony Vaio, PCV-RS420. Pioneer DVR 106D. I'm using Memorex DVD+RW's, 2.4 speed. Here's the only system changes I've made. About a month ago I used a blank Memorex 8x DVD+R I installed Windows SP2 (later I uninstalled it) Uninstalled Norton and added McAfee. Someone help. I'm beginning to think my DVD drive is fried. I may need some firmware? Does anyone have explicit instructions on how to install the firmware correctly. (I don't want to make it worse.) Or maybe someone has some other suggestions.