But i didn't burn any of my Linux disk? I have used them all before and they always worked. The knoppix disk is a 4.0 and it came with a book I bought. i remember I had a bad hardrive and I just used knoppix for a month without turning off my box. maybe the disk is bad now. But that would mean that my mepis and my Ubuntu and knoppix disks all went bad at the same time. I have tried 4 different drives. i know its not a drive problem. I was watching movies and burning with them last night. it could be an evil plot by Mr Gates to get me to buy Vista. Seriously this sucks.