Thanks for the reply. I'll try to be more specific since I'm not very tech savvy. I'm burning a CDI file (Dreamcast homebrew games) on a Maxell CD-R. When I want to backup my dvds, it's the same thing. It won't burn under 16x. I guess I should also state what I've tried so far. My cd/dvd drive is one of those drives that does not have a Recording tab in the drive Properties. I've already tried everything I could find online from people trying to help with that problem, but none works. So I can't use that to change the drive speed. I have no clue how I changed it the first time where I was able to burn at 8x.