Whenever I try to burn a CD using Nero 5.5 or even Adaptec Easy CD Creator, I insert a blank disc in the drive but before it starts burning, it spits the disc out and asks me to insert a blank one, but I already have a blank disc in the drive. ANy ideas what the problem is, I thought maybe the CDR media might be dodgy but the disc works fine on another machine. The machine is running Windows 2000 Server, any ideas appreciated, thanks.