Hello, I was going to upgrade my iMac G3 to Mac OSX Panther. I put the OSX Panther CD in my iMac and it spat it out. I had a look at the shiny side of the CD and it was covered in tons of little tiny white blotches. I don't know how it happened, the CD had been sitting in it's case for years... I tried cleaning it with a dry cloth, then a damp cloth and neither worked. Is there anything I can use to clean the CD or is it ruined? Thanks in advance!