Hi, Im trying to write an ISO file to a Disc, all good up to here. I have a 800MB Recordable CD and I put it into the Superdrive. Finder asks me what to do with it so I say open with disk utility. When I try to burn it says that there isn't enough space on the disc. I have tried with 2 brand new discs. I go to get info and finder tells me I have 8KB capacity on it: Please help!