Hey I recently bought a new computer and at first when I stuck in a cdr it would recognize it and ask me what I want to do with it. Now when I try to burn a cd, I stick in a cdr and go to my burning program (SONIC) and when I thry to burn, it says please insert a blank or writable CD. What has gone wrong? :confused:

My PC CD insert won't recognze Recovery CD when I insert CD. Also hasn't recognized other CDs
I have An ASUS PC with Windows Vista.