Hi, I have a 17" iSight iMac G5. Last night after I finished downloading a song from the iTunes music store, I was going to burn a copy of that particular song as well as others to a blank cd-r disk. I inserted a blank cd-r and it whirred a little bit but the cd-r never mounted on the desktop/showed up in iTunes but it did prompt me saying that a blank cd had been entered and asked what I wanted to do with it (which I am accustomed to). Everything seems normal (the prompt included) except the cd-r will not mount. So, I inserted DVD's...commercial cd's...and even cd-r's that I made in the past and they all mounted fine without any sort of problem. All of a sudden, my Mac won't recognize just regular old blank cd-r disks. Please help.