Questions Geotrichum fungus media CD/DVD

I am very concerned and wanted to help


1 Anyone who has knowledge on the subject fungus in DVD / CD can help me clarify some questions?


2 is only Geotrichum fungus that attacks the CD / DVD or there are other fungi that attack these medias?


3 where and how Geotrichum and other fungi appear and attack the DVDs and CDs?


I'm live and Brazil Ceará state